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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:131AB GHM

Order: 18

Horizontal side: 131 Vertical side: 131

Elements: 5, 8, 8√2, 14, 16, 14√2, 16√2, 28, 24√2, 37, 28√2, 42, 47, 56, 42√2, 47√2, 70, 89.

Code: 897 0 131 373 89 94 427 89 131 426 89 89 240 52 94 164 68 78 163 84 78 472 131 47 51 89 94 84 76 70 83 84 70 286 0 42 567 28 70 703 84 0 473 131 0 285 0 14 145 0 0 144 14 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)

89
37
42
42√2
24√2
16√2
16
47√2
5
8√2
8
28√2
56
70
47
28
14
14√2