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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:312AA1of2 GHM

Order: 19

Horizontal side: 312 Vertical side: 312

Elements: 8√2, 16, 14√2, 16√2, 28, 32, 56, 40√2, 42√2, 48√2, 56√2, 80, 57√2, 114, 85√2, 142, 170, 128√2, 156√2.

Code: 1705 0 142 1564 156 156 1286 184 184 283 184 156 482 232 136 144 170 142 426 142 114 1425 0 0 854 85 57 406 192 96 805 232 56 576 85 57 1145 142 0 80 192 96 167 184 88 166 184 72 325 200 56 564 256 0 563 312 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
48√2
14√2
42√2
142
85√2
40√2
80
57√2
114
8√2
16
16√2
32
56√2
56