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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:136BE GHM

Order: 18

Horizontal side: 136 Vertical side: 136

Elements: 4√2, 7√2, 14, 11√2, 16, 18, 22, 16√2, 20√2, 22√2, 32, 26√2, 42, 52, 42√2, 68, 94, 68√2.

Code: 945 0 42 684 68 68 683 136 68 264 94 42 160 120 68 161 136 68 143 104 38 327 104 52 523 136 0 427 0 42 420 42 42 224 64 20 223 86 20 112 97 31 44 90 38 74 97 31 183 104 20 204 84 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)

94
68√2
68
26√2
16√2
16
14
32
52
42
42√2
22√2
22
11√2
4√2
7√2
18
20√2