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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:120AM GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 8√2, 12, 12√2, 13√2, 20, 24, 18√2, 26, 21√2, 32, 34, 36, 26√2, 42, 52, 60, 68, 60√2.

Code: 687 0 120 363 68 84 182 86 102 264 94 94 263 120 94 423 86 60 212 107 81 134 107 81 343 120 60 323 32 52 127 32 84 126 32 72 247 44 84 205 32 52 84 52 52 600 60 60 601 120 60 527 0 52

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)

68
36
18√2
26√2
26
42
21√2
13√2
34
32
12
12√2
24
20
8√2
60√2
60
52