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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:312AF2of4 GHM

Order: 19

Horizontal side: 312 Vertical side: 312

Elements: 8√2, 16, 16√2, 22√2, 32, 24√2, 44, 32√2, 45√2, 56√2, 88, 90, 66√2, 112, 89√2, 134, 112√2, 178, 156√2.

Code: 1785 0 134 1564 156 156 1126 200 200 443 200 156 1125 200 88 224 178 134 666 134 90 1345 0 0 894 89 45 456 89 45 905 134 0 322 232 56 564 256 32 883 312 0 240 232 56 86 200 24 167 208 32 166 208 16 327 224 32

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)

178
156√2
112√2
44
112
22√2
66√2
134
89√2
45√2
90
32√2
56√2
88
24√2
8√2
16
16√2
32