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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:108AQ GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 5√2, 9, 7√2, 8√2, 9√2, 14, 16, 12√2, 16√2, 23, 24, 30, 34, 42, 54, 42√2, 66, 54√2.

Code: 665 0 42 544 54 54 543 108 54 124 66 42 70 78 54 301 108 54 50 71 47 141 85 47 235 85 24 427 0 42 420 42 42 341 76 42 92 85 33 93 85 24 165 76 8 164 92 8 243 108 0 84 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)

66
54√2
54
12√2
7√2
30
5√2
14
23
42
42√2
34
9√2
9
16
16√2
24
8√2