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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:312AB GHM

Order: 18

Horizontal side: 312 Vertical side: 312

Elements: 16, 14√2, 16√2, 28, 32, 24√2, 48, 56, 42√2, 48√2, 57√2, 112, 114, 85√2, 142, 170, 128√2, 156√2.

Code: 1705 0 142 1564 156 156 1286 184 184 283 184 156 1125 184 72 144 170 142 426 142 114 1425 0 0 854 85 57 576 85 57 1145 142 0 484 232 24 483 280 24 167 280 72 160 296 72 327 280 56 563 312 0 244 256 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)

170
156√2
128√2
28
112
14√2
42√2
142
85√2
57√2
114
48√2
48
16
16√2
32
56
24√2