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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AN1of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1, 1√2, 11, 12, 13, 14, 11√2, 14√2, 22, 28, 22√2, 33, 28√2, 41, 55, 69, 55√2, 83, 69√2.

Code: 835 0 55 694 69 69 693 138 69 144 83 55 143 97 55 135 97 56 411 138 69 17 97 56 10 98 56 121 110 56 282 138 28 557 0 55 550 55 55 224 77 33 223 99 33 112 110 44 113 110 33 331 110 33 283 138 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)

83
69√2
69
14√2
14
13
41
1
1√2
12
28√2
55
55√2
22√2
22
11√2
11
33
28