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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
(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
_20-269AA GHM
_20-270AA GHM
_20-270AB GHM
_20-270AC GHM
_20-270AD GHM
_20-270AE GHM
_20-270AF GHM
_20-270AG GHM
_20-270AH GHM
_20-270AI GHM
_20-270AJ GHM
_20-270AK GHM
_20-270AL GHM
_20-270AM GHM
_20-270AN GHM
_20-270AO GHM
_20-270AP GHM
_20-270AQ GHM
_20-270AR GHM
_20-270AS GHM
_20-270AT GHM
_20-270AU GHM
_20-270AV GHM
_20-270AW1of2 GHM
_20-270AW2of2 GHM
_20-270AX1of2 GHM
_20-270AX2of2 GHM
_20-271AA GHM
_20-271AB GHM
_20-272AA GHM
_20-272AB GHM
_20-272AC GHM
_20-272AD GHM
_20-272AE GHM
_20-272AF GHM
_20-272AG GHM
_20-272AH GHM
_20-272AI GHM
_20-272AJ GHM
_20-272AK GHM
_20-272AL GHM
_20-272AM GHM
_20-272AN GHM
_20-272AO GHM
_20-272AP GHM
_20-272AQ GHM
_20-272AR GHM
_20-272AS GHM
_20-272AT GHM
_20-272AU GHM
_20-272AV GHM
_20-272AW GHM
_20-272AX GHM
_20-272AY GHM
_20-272AZ GHM
_20-272BA GHM
_20-272BB GHM
_20-272BC GHM
_20-272BD GHM
_20-272BE GHM
_20-272BF JDS
_20-272BG GHM
_20-272BH GHM
_20-273AA GHM
_20-273AB1of2 GHM
_20-273AB2of2 GHM
_20-273AC GHM
_20-273AD GHM
_20-273AE GHM
_20-274AA GHM
_20-274AB GHM
_20-274AC GHM
_20-274AD GHM
_20-274AE GHM
_20-274AF GHM
_20-274AG GHM
_20-274AH GHM
_20-274AI GHM
_20-274AJ GHM
_20-274AK GHM
_20-274AL GHM
_20-274AM GHM
_20-274AN GHM
_20-274AO GHM
_20-274AP GHM
_20-274AQ GHM
_20-274AR GHM
_20-274AS1of2 GHM
_20-274AS2of2 GHM
_20-275AA GHM
_20-275AB GHM
_20-276AA GHM
_20-276AB GHM
_20-276AC GHM
_20-276AD GHM
_20-276AE GHM
_20-276AF GHM
_20-276AG GHM
_20-276AH GHM
_20-276AI1of4 GHM
_20-276AI2of4 GHM
_20-276AI3of4 GHM
_20-276AI4of4 GHM
_20-276AJ GHM
_20-276AK1of4 GHM
_20-276AK2of4 GHM
_20-276AK3of4 GHM
_20-276AK4of4 GHM
_20-276AL1of4 GHM
_20-276AL2of4 GHM
_20-276AL3of4 GHM
_20-276AL4of4 GHM
_20-276AM1of4 GHM
_20-276AM2of4 GHM
_20-276AM3of4 GHM
_20-276AM4of4 GHM
_20-276AN GHM
_20-276AO GHM
_20-276AP GHM
_20-277AA GHM
_20-278AA GHM
_20-278AB GHM
_20-278AC1of4 GHM
_20-278AC2of4 GHM
_20-278AC3of4 GHM
_20-278AC4of4 GHM
e20-278AD1of4 GHM
e20-278AD2of4 GHM
e20-278AD3of4 GHM
e20-278AD4of4 GHM
_20-278AE1of2 GHM
_20-278AE2of2 GHM
_20-278AF GHM
_20-278AG GHM
_20-278AH GHM
_20-278AI GHM
_20-279AA1of4 GHM
_20-279AA2of4 GHM
_20-279AA3of4 GHM
_20-279AA4of4 GHM
_20-279AB1of2 GHM
_20-279AB2of2 GHM
_20-280AA GHM
_20-280AB GHM
_20-280AC GHM
_20-280AD GHM
_20-280AE GHM
_20-280AF GHM
_20-280AG GHM
_20-280AH GHM
_20-280AI GHM
_20-280AJ GHM
_20-280AK GHM
_20-280AL GHM
_20-280AM GHM
_20-280AN GHM
_20-280AO GHM
_20-280AP GHM
_20-280AQ GHM
_20-280AR GHM
_20-280AS GHM
_20-280AT GHM
_20-280AU GHM
_20-280AV GHM
_20-280AW GHM
_20-280AX GHM
_20-280AY GHM
_20-280AZ GHM
_20-280BA1of2 GHM
_20-280BA2of2 GHM
_20-280BB GHM
_20-280BC GHM
_20-280BD1of2 GHM
_20-280BD2of2 GHM
_20-280BE1of2 GHM
_20-280BE2of2 GHM
_20-280BF1of2 GHM
_20-280BF2of2 GHM
_20-280BG GHM
_20-281AA GHM
_20-282AA GHM
_20-282AB GHM
_20-282AC GHM
_20-282AD GHM
_20-282AE GHM
_20-283AA GHM
_20-283AB GHM
_20-283AC GHM
_20-283AD GHM
_20-283AE GHM
_20-283AF GHM
_20-284AA GHM
_20-284AB GHM
_20-284AC GHM
_20-284AD GHM
_20-284AE1of2 GHM
_20-284AE2of2 GHM
_20-284AF1of2 GHM
_20-284AF2of2 GHM
_20-284AG1of2 GHM
_20-284AG2of2 GHM
_20-284AH1of2 GHM
_20-284AH2of2 GHM
_20-284AI1of2 GHM
_20-284AI2of2 GHM
_20-284AJ GHM
_20-284AK GHM
_20-284AL GHM
_20-284AM GHM
_20-284AN GHM
_20-284AO GHM
_20-284AP GHM
_20-284AQ GHM
_20-284AR GHM
_20-284AS GHM
_20-284AT GHM
_20-284AU GHM
_20-284AV GHM
_20-285AA GHM
_20-285AB GHM
_20-285AC1of4 GHM
_20-285AC2of4 GHM
_20-285AC3of4 GHM
_20-285AC4of4 GHM
_20-285AD GHM
_20-285AE GHM
_20-286AA1of4 GHM
_20-286AA2of4 GHM
_20-286AA3of4 GHM
_20-286AA4of4 GHM
_20-286AB1of4 GHM
_20-286AB2of4 GHM
_20-286AB3of4 GHM
_20-286AB4of4 GHM
_20-286AC GHM
_20-287AA GHM
_20-288AA GHM
_20-288AB GHM
_20-288AC GHM
_20-288AD GHM
_20-288AE GHM
_20-288AF GHM
_20-288AG GHM
_20-288AH GHM
_20-288AI GHM
_20-288AJ GHM
_20-288AK GHM
_20-288AL GHM
_20-288AM GHM
_20-288AN GHM
_20-288AO GHM
_20-288AP GHM
_20-288AQ GHM
_20-288AR JDS
_20-288AS GHM
_20-288AT1of2 GHM
_20-288AT2of2 GHM
_20-288AU GHM
_20-288AV GHM
_20-288AW1of2 GHM
_20-288AW2of2 GHM
_20-288AX GHM
_20-288AY JDS
_20-288AZ JDS
_20-288BA JDS
_20-288BB1of2 GHM
_20-288BB2of2 GHM
_20-288BC1of2 GHM
_20-288BC2of2 GHM
_20-288BD GHM
_20-288BE GHM
_20-288BF GHM
_20-288BG GHM
_20-290AA GHM
_20-290AB GHM
_20-290AC GHM
_20-290AD GHM
_20-290AE GHM
_20-290AF GHM
_20-290AG GHM
_20-290AH GHM
_20-290AI GHM
_20-290AJ GHM
_20-290AK GHM
_20-290AL GHM
_20-290AM GHM
_20-290AN GHM
_20-290AO GHM
_20-290AP GHM
(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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