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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:142AR GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 8, 8√2, 14, 16, 12√2, 14√2, 21, 24, 28, 21√2, 24√2, 35, 43, 57, 71, 57√2, 85, 71√2.

Code: 855 0 57 714 71 71 713 142 71 144 85 57 143 99 57 355 99 36 431 142 71 577 0 57 570 57 57 214 78 36 213 99 36 244 102 12 243 126 12 87 126 36 80 134 36 167 126 28 283 142 0 124 114 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
35
43
57
57√2
21√2
21
24√2
24
8
8√2
16
28
12√2