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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:256AM GHM

Order: 19

Horizontal side: 256 Vertical side: 256

Elements: 2√2, 4, 4√2, 6√2, 19√2, 20√2, 38, 40, 30√2, 48, 40√2, 60, 60√2, 68√2, 98, 79√2, 98√2, 158, 128√2.

Code: 1585 0 98 1284 128 128 686 188 188 603 188 128 485 188 140 62 194 134 44 192 136 43 196 136 402 236 100 401 236 140 202 256 120 24 194 134 383 196 98 304 158 98 606 196 60 985 0 0 984 98 0 196 177 79 790 177 79

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)

158
128√2
68√2
60
48
6√2
4√2
4
40√2
40
20√2
2√2
38
30√2
60√2
98
98√2
19√2
79√2