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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AJ2of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 2√2, 4, 4√2, 8, 6√2, 9, 9√2, 10√2, 18, 20, 20√2, 31, 40, 49, 59, 69, 79, 59√2, 69√2.

Code: 795 0 59 694 69 69 693 138 69 104 79 59 183 89 51 92 98 60 491 138 69 93 98 51 405 98 20 597 0 59 590 59 59 81 67 59 42 71 55 64 73 53 43 71 51 22 73 53 311 98 51 204 118 0 203 138 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)

79
69√2
69
10√2
18
9√2
49
9
40
59
59√2
8
4√2
6√2
4
2√2
31
20√2
20