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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:166AW2of4 GHM

Order: 19

Horizontal side: 166 Vertical side: 166

Elements: 1√2, 2, 2√2, 4, 4√2, 8, 7√2, 8√2, 15√2, 30, 23√2, 30√2, 53, 60, 68, 83, 68√2, 98, 83√2.

Code: 985 0 68 834 83 83 833 166 83 154 98 68 230 113 83 531 166 83 687 0 68 680 68 68 81 76 68 42 80 64 41 80 68 22 82 66 21 82 68 12 83 67 84 90 60 70 83 67 601 136 60 302 166 30 303 166 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)

98
83√2
83
15√2
23√2
53
68
68√2
8
4√2
4
2√2
2
1√2
8√2
7√2
60
30√2
30