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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:142CH GHM

Order: 18

Horizontal side: 142 Vertical side: 142

Elements: 6√2, 12, 12√2, 17, 18, 24, 17√2, 33, 24√2, 25√2, 42, 33√2, 58, 42√2, 60, 66, 76, 100.

Code: 1007 0 142 763 100 66 427 100 142 426 100 100 172 117 83 173 117 66 252 142 58 246 0 42 607 24 66 663 84 0 332 117 33 331 117 66 583 142 0 245 0 18 185 0 0 124 12 6 123 24 6 64 18 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)

100
76
42
42√2
17√2
17
25√2
24√2
60
66
33√2
33
58
24
18
12√2
12
6√2