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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138AU GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 1√2, 11√2, 14√2, 15√2, 22, 16√2, 17√2, 25, 28, 30, 22√2, 32, 44, 47, 47√2, 69, 91, 69√2.

Code: 915 0 47 694 69 69 693 138 69 224 91 47 223 113 47 112 124 58 251 138 69 283 124 30 142 138 44 477 0 47 470 47 47 321 79 47 162 95 31 174 96 30 443 138 0 10 95 31 156 79 15 307 94 30

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)

91
69√2
69
22√2
22
11√2
25
28
14√2
47
47√2
32
16√2
17√2
44
1√2
15√2
30