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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:138BC GHM

Order: 18

Horizontal side: 138 Vertical side: 138

Elements: 8, 8√2, 9√2, 16, 12√2, 19, 15√2, 16√2, 19√2, 32, 25√2, 38, 44, 50, 44√2, 69, 94, 69√2.

Code: 945 0 44 694 69 69 693 138 69 254 94 44 190 119 69 191 138 69 156 85 35 387 100 50 503 138 0 447 0 44 440 44 44 321 76 44 162 92 28 94 85 35 163 92 12 82 100 20 83 100 12 124 88 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
69√2
69
25√2
19√2
19
15√2
38
50
44
44√2
32
16√2
9√2
16
8√2
8
12√2