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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:128AN3of4 GHM

Order: 19

Horizontal side: 128 Vertical side: 128

Elements: 2√2, 4, 4√2, 6√2, 11, 12, 11√2, 12√2, 20, 22, 20√2, 22√2, 33, 42, 53, 64, 53√2, 75, 64√2.

Code: 755 0 53 644 64 64 643 128 64 114 75 53 113 86 53 202 106 44 421 128 64 537 0 53 530 53 53 331 86 53 203 106 24 222 128 22 45 86 20 44 90 20 66 88 18 127 94 24 126 94 12 223 128 0 24 88 18

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)

75
64√2
64
11√2
11
20√2
42
53
53√2
33
20
22√2
4
4√2
6√2
12
12√2
22
2√2