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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:136BO GHM

Order: 19

Horizontal side: 136 Vertical side: 136

Elements: 1√2, 2, 2√2, 4, 4√2, 8, 8√2, 15√2, 23, 30, 23√2, 37, 38, 30√2, 53, 68, 53√2, 83, 68√2.

Code: 835 0 53 684 68 68 683 136 68 154 83 53 10 98 68 381 136 68 20 97 67 21 99 67 375 99 30 40 95 65 41 99 65 80 91 61 81 99 61 537 0 53 530 53 53 234 76 30 233 99 30 304 106 0 303 136 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
68√2
68
15√2
1√2
38
2√2
2
37
4√2
4
8√2
8
53
53√2
23√2
23
30√2
30