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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:128AL GHM

Order: 19

Horizontal side: 128 Vertical side: 128

Elements: 1, 1√2, 6√2, 7√2, 10, 11, 14, 10√2, 13√2, 14√2, 20, 20√2, 40, 44, 54, 64, 74, 54√2, 64√2.

Code: 745 0 54 644 64 64 643 128 64 104 74 54 103 84 54 115 84 53 441 128 64 547 0 54 540 54 54 144 68 40 143 82 40 72 89 47 14 83 53 13 84 53 64 89 47 130 95 53 401 108 40 202 128 20 203 128 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)

74
64√2
64
10√2
10
11
44
54
54√2
14√2
14
7√2
1√2
1
6√2
13√2
40
20√2
20