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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:216AA GHM

Order: 18

Horizontal side: 216 Vertical side: 216

Elements: 9√2, 20, 16√2, 32, 38, 32√2, 48, 38√2, 56, 64, 66, 56√2, 66√2, 94, 96, 75√2, 112, 84√2.

Code: 842 84 132 754 75 141 660 150 216 661 216 216 96 75 141 387 84 150 380 122 150 941 216 150 203 84 112 643 64 48 967 64 112 1123 160 0 562 216 56 563 216 0 485 0 0 324 32 16 323 64 16 164 48 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)

84√2
75√2
66√2
66
9√2
38
38√2
94
20
64
96
112
56√2
56
48
32√2
32
16√2