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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:72AL GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 3√2, 4√2, 6, 8, 8√2, 12, 11√2, 16, 14√2, 22, 16√2, 24, 17√2, 20√2, 22√2, 25√2, 36, 36√2.

Code: 365 0 36 364 36 36 256 47 47 110 47 47 247 0 36 200 24 36 174 41 19 140 58 36 36 41 19 67 44 22 220 50 22 221 72 22 46 0 12 87 4 16 86 4 8 165 12 0 164 28 0 125 0 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)

36
36√2
25√2
11√2
24
20√2
17√2
14√2
3√2
6
22√2
22
4√2
8
8√2
16
16√2
12