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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:142AO GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 5√2, 10, 8√2, 14, 10√2, 13√2, 14√2, 15√2, 28, 21√2, 36, 28√2, 43, 57, 71, 57√2, 85, 71√2.

Code: 855 0 57 714 71 71 713 142 71 144 85 57 143 99 57 152 114 56 431 142 71 577 0 57 570 57 57 214 78 36 86 91 49 106 104 46 282 142 28 130 91 49 56 99 41 105 104 36 361 114 36 283 142 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

85
71√2
71
14√2
14
15√2
43
57
57√2
21√2
8√2
10√2
28√2
13√2
5√2
10
36
28