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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AD GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 1, 1√2, 2, 2√2, 4, 7, 7√2, 11√2, 22, 22√2, 36, 44, 47, 58, 69, 80, 58√2, 69√2.

Code: 805 0 58 694 69 69 693 138 69 114 80 58 43 91 65 22 93 67 471 138 69 23 93 65 12 94 66 13 94 65 445 94 22 70 87 65 71 94 65 587 0 58 580 58 58 361 94 58 224 116 0 223 138 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)

80
69√2
69
11√2
4
2√2
47
2
1√2
1
44
7√2
7
58
58√2
36
22√2
22