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Tilings by Squares
Tilings by Triangles
Isosceles Right Triangled Squares
Primitive Perfects
(1) PPIRTS's Order 11
(3) PPIRTS's Order 12
(13) PPIRTS's Order 13
(38) PPIRTS's Order 14
(128) PPIRTS's Order 15
(451) PPIRTS's Order 16
(1039) PPIRTS's Order 17
(2581) PPIRTS's Order 18
(7021) PPIRTS's Order 19
(8446) PPIRTS's Order 20
(308); 20:32->20:70
(320); 20:71->20:86
(292); 20:87->20:99
(293); 20:100->20:110
_20-100AA GHM
_20-100AB GHM
_20-100AC GHM
_20-100AD GHM
_20-100AE GHM
_20-100AF GHM
_20-100AG GHM
_20-100AH1of2 GHM
_20-100AH2of2 GHM
_20-100AI GHM
_20-100AJ GHM
_20-100AK GHM
_20-100AL GHM
_20-100AM GHM
_20-100AN GHM
_20-100AO GHM
_20-100AP GHM
_20-100AQ GHM
_20-100AR GHM
_20-100AS GHM
_20-100AT GHM
_20-100AU GHM
_20-100AV GHM
_20-100AW GHM
_20-100AX GHM
_20-100AY GHM
_20-100AZ GHM
_20-100BA1of2 GHM
_20-100BA2of2 GHM
_20-100BB1of2 GHM
_20-100BB2of2 GHM
_20-100BC1of2 GHM
_20-100BD1of2 GHM
_20-100BE GHM
_20-100BF JDS
_20-100BG JDS
_20-100BH JDS
_20-100BI GHM
_20-100BJ GHM
_20-100BK GHM
_20-100BL GHM
_20-100BM1of2 GHM
_20-100BM2of2 GHM
_20-100BN1of2 GHM
_20-100BN2of2 GHM
_20-100BO GHM
_20-101AA GHM
_20-101AB GHM
_20-102AA GHM
_20-102AB GHM
_20-102AC GHM
_20-102AD GHM
_20-102AE GHM
_20-102AF GHM
_20-102AG GHM
_20-102AH GHM
_20-102AI1of4 GHM
_20-102AI2of4 GHM
_20-102AI3of4 GHM
_20-102AI4of4 GHM
_20-102AJ1of4 GHM
_20-102AJ2of4 GHM
_20-102AJ3of4 GHM
_20-102AJ4of4 GHM
_20-102AK1of4 GHM
_20-102AK2of4 GHM
_20-102AK3of4 GHM
_20-102AK4of4 GHM
_20-102AL1of4 GHM
_20-102AL2of4 GHM
_20-102AL3of4 GHM
_20-102AL4of4 GHM
_20-102AM GHM
_20-102AN GHM
_20-102AO GHM
_20-102AP GHM
_20-102AQ GHM
_20-102AR GHM
_20-102AS GHM
_20-102AT GHM
_20-102AU GHM
_20-102AV GHM
_20-102AW GHM
_20-102AX GHM
_20-102AY GHM
_20-102AZ GHM
_20-102BA GHM
_20-102BB GHM
_20-102BC GHM
_20-102BD GHM
_20-102BE GHM
_20-102BF GHM
_20-102BG GHM
_20-102BH GHM
_20-102BI GHM
_20-102BJ GHM
_20-102BK GHM
_20-102BL GHM
_20-102BM GHM
_20-102BN GHM
_20-102BO GHM
_20-103AA GHM
_20-104AA GHM
_20-104AB GHM
_20-104AC GHM
_20-104AD GHM
_20-104AE GHM
_20-104AF GHM
_20-104AG GHM
_20-104AH GHM
_20-104AI GHM
_20-104AJ GHM
_20-104AK GHM
_20-104AL GHM
_20-104AM GHM
_20-104AN GHM
_20-104AO GHM
_20-104AP1of4 GHM
_20-104AP2of4 GHM
_20-104AP3of4 GHM
_20-104AP4of4 GHM
_20-104AQ1of4 GHM
_20-104AQ2of4 GHM
_20-104AQ3of4 GHM
_20-104AQ4of4 GHM
_20-104AR1of8 GHM
_20-104AR2of8 GHM
_20-104AR3of8 GHM
_20-104AR4of8 GHM
_20-104AR5of8 GHM
_20-104AR6of8 GHM
_20-104AR7of8 GHM
_20-104AR8of8 GHM
_20-104AS JDS
_20-104AT GHM
_20-104AU GHM
_20-104AV GHM
_20-104AW GHM
_20-104AX GHM
_20-104AY GHM
_20-104AZ GHM
_20-104BA GHM
_20-104BB GHM
_20-104BC GHM
_20-104BD GHM
_20-104BE GHM
_20-104BF1of8 GHM
_20-104BF2of8 GHM
_20-104BF3of8 GHM
_20-104BF4of8 GHM
_20-104BF5of8 GHM
_20-104BF6of8 GHM
_20-104BF7of8 GHM
_20-104BF8of8 GHM
_20-104BG1of8 GHM
_20-104BG2of8 GHM
_20-104BG3of8 GHM
_20-104BG4of8 GHM
_20-104BG5of8 GHM
_20-104BG6of8 GHM
_20-104BG7of8 GHM
_20-104BG8of8 GHM
_20-104BH1of8 GHM
_20-104BH2of8 GHM
_20-104BH3of8 GHM
_20-104BH4of8 GHM
_20-104BH5of8 GHM
_20-104BH6of8 GHM
_20-104BH7of8 GHM
_20-104BH8of8 GHM
_20-104BI GHM
_20-104BJ1of8 GHM
_20-104BJ2of8 GHM
_20-104BJ3of8 GHM
_20-104BJ4of8 GHM
_20-104BJ5of8 GHM
_20-104BJ6of8 GHM
_20-104BJ7of8 GHM
_20-104BJ8of8 GHM
_20-104BK GHM
_20-104BL GHM
_20-104BM GHM
_20-104BN GHM
_20-104BO GHM
_20-105AA GHM
_20-105AB GHM
_20-105AC GHM
_20-105AD GHM
_20-105AE GHM
e20-105AF GHM
_20-105AG GHM
_20-106AA GHM
_20-106AB GHM
_20-106AC GHM
_20-106AD1of2 GHM
_20-106AD2of2 GHM
_20-106AE GHM
_20-106AF GHM
_20-106AG GHM
_20-106AH GHM
_20-107AA GHM
_20-107AB GHM
_20-107AC GHM
_20-107AD GHM
_20-108AA GHM
_20-108AB GHM
_20-108AC GHM
_20-108AD GHM
_20-108AE GHM
_20-108AF GHM
_20-108AG GHM
_20-108AH GHM
_20-108AI GHM
_20-108AJ GHM
_20-108AK GHM
_20-108AL GHM
_20-108AM1of4 GHM
_20-108AM2of4 GHM
_20-108AM3of4 GHM
_20-108AM4of4 GHM
_20-108AN1of4 GHM
_20-108AN2of4 GHM
_20-108AN3of4 GHM
_20-108AN4of4 GHM
_20-108AO1of4 GHM
_20-108AO2of4 GHM
_20-108AO3of4 GHM
_20-108AO4of4 GHM
_20-108AP GHM
_20-108AQ GHM
_20-108AR GHM
_20-108AS GHM
_20-108AT GHM
_20-108AU JDS
_20-108AV GHM
_20-108AW GHM
_20-108AX GHM
_20-108AY1of2 GHM
_20-108AY2of2 GHM
_20-108AZ GHM
_20-108BA GHM
_20-108BB GHM
_20-109AA GHM
_20-109AB GHM
_20-109AC GHM
_20-110AA GHM
_20-110AB GHM
_20-110AC GHM
_20-110AD GHM
_20-110AE GHM
_20-110AF GHM
_20-110AG GHM
_20-110AH GHM
_20-110AI GHM
_20-110AJ GHM
_20-110AK GHM
_20-110AL GHM
_20-110AM GHM
_20-110AN1of2 GHM
_20-110AN2of2 GHM
_20-110AO1of2 GHM
_20-110AO2of2 GHM
_20-110AP1of2 GHM
_20-110AP2of2 GHM
_20-110AQ GHM
_20-110AR GHM
_20-110AS GHM
_20-110AT GHM
_20-110AU GHM
_20-110AV GHM
_20-110AW GHM
_20-110AX GHM
_20-110AY GHM
_20-110AZ1of2 GHM
_20-110AZ2of2 GHM
_20-110BA1of2 GHM
_20-110BA2of2 GHM
_20-110BB1of2 GHM
_20-110BB2of2 GHM
_20-110BC1of2 GHM
_20-110BC2of2 GHM
_20-110BD GHM
_20-110BE GHM
_20-110BF GHM
_20-110BG GHM
_20-110BH GHM
_20-110BI1of2 GHM
_20-110BI2of2 GHM
_20-110BJ1of2 GHM
_20-110BJ2of2 GHM
_20-110BK1of2 GHM
_20-110BK2of2 GHM
_20-110BL GHM
(324); 20:112->20:124
(323); 20:125->20:134
(303); 20:135->20:146
(310); 20:147->20:156
(283); 20:157->20:165
(303); 20:166->20:174
(307); 20:175->20:184
(290); 20:185->20:188
(291); 20:189->20:203
(301); 20:204->20:215
(290); 20:216->20:223
(321); 20:224->20:232
(301); 20:234->20:240
(297); 20:241->20:252
(317); 20:253->20:262
(301); 20:263->20:268
(289); 20:269->20:290
(287); 20:291->20:310
(300); 20:311->20:327
(305); 20:328->20:338
(289); 20:339->20:362
(301); 20:364->20:380
(299); 20:382->20:448
(301); 20:450->20:784
Derivative Ultraperfects
Nonultraperfects
Simple Primitive Imperfects
Triangled Equilateral Triangles
Orders
History and Theory
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