Non-ultraperfect Perfect Isosceles Right Triangled Square

Title: _ 12:34PF4of4

Order: 12

Horizontal side: 34 Vertical side: 34

Elements: 1, 1√2, 2, 2√2, 5, 5√2, 7√2, 10, 8√2, 9√2, 17√2, 34.

Code: 347 0 34 176 17 17 103 17 7 82 25 9 90 25 9 70 7 7 54 12 2 53 17 2 24 14 0 23 16 0 12 17 1 11 17 2

The fact that every NPIRTS has a subdivided triangle is not recorded as a property. The properties below may precede order:side in a tiling's title:

• e = elegant. No tiling is just a T-junction. Such tilings may be considered aesthetically pleasing.
• p/r = pseudotriangular/rectangular inclusion subdivided into at least 6/5 triangles respectively.

Credit for Discovery

Jasper D. Skinner found many NPIRTS's before this catalogue was built by Geoffrey H. Morley. Only the two lowest order NPIRTS's are attributed to discoverers:

J. Douglas and E.P. Starke (D&S, United States) (7:10PA only)

Arthur H. Stone (AHS, United States, 1916-2000) (7:7PA only)