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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:222AB GHM

Order: 18

Horizontal side: 222 Vertical side: 222

Elements: 12, 12√2, 28, 22√2, 25√2, 28√2, 40, 44, 32√2, 47, 50, 39√2, 64, 79, 111, 79√2, 143, 111√2.

Code: 1435 0 79 1114 111 111 1113 222 111 324 143 79 443 175 67 222 197 89 471 222 111 503 197 39 252 222 64 797 0 79 790 79 79 401 119 79 125 119 67 124 131 67 285 119 39 284 147 39 643 222 0 394 158 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)

143
111√2
111
32√2
44
22√2
47
50
25√2
79
79√2
40
12
12√2
28
28√2
64
39√2