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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:256AE GHM

Order: 19

Horizontal side: 256 Vertical side: 256

Elements: 10, 10√2, 12√2, 13√2, 24, 23√2, 24√2, 36√2, 54, 64, 72, 74, 54√2, 64√2, 74√2, 118, 128, 138, 128√2.

Code: 1387 0 256 723 138 184 1187 138 256 1286 128 128 120 66 184 364 102 148 236 115 161 546 0 118 247 54 172 240 78 172 130 115 161 747 54 148 746 54 74 102 138 138 1285 128 0 545 0 64 105 54 64 647 0 64 640 64 64

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)

138
72
118
128√2
12√2
36√2
23√2
54√2
24
24√2
13√2
74
74√2
10√2
128
54
10
64
64√2