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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:68AC GHM

Order: 18

Horizontal side: 68 Vertical side: 68

Elements: 3√2, 6, 6√2, 8√2, 12, 11√2, 16, 12√2, 18, 20, 22, 16√2, 26, 30, 22√2, 24√2, 36, 26√2.

Code: 367 0 68 240 36 68 164 52 52 163 68 52 84 60 44 266 42 26 126 0 32 307 12 44 226 20 22 187 42 44 125 0 20 265 42 0 116 9 11 225 20 0 205 0 0 64 6 14 63 12 14 34 9 11

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)

36
24√2
16√2
16
8√2
26√2
12√2
30
22√2
18
12
26
11√2
22
20
6√2
6
3√2