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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:56AK GHM

Order: 18

Horizontal side: 56 Vertical side: 56

Elements: 1√2, 2, 6, 6√2, 8√2, 12, 15, 16, 12√2, 17, 18, 13√2, 15√2, 16√2, 24, 26, 20√2, 24√2.

Code: 265 0 30 204 20 36 86 32 48 167 40 56 166 40 40 126 20 36 242 56 24 152 15 15 134 13 17 123 26 18 62 32 24 63 32 18 243 56 0 10 14 18 181 32 18 21 15 17 175 15 0 153 15 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)

26
20√2
8√2
16
16√2
12√2
24√2
15√2
13√2
12
6√2
6
24
1√2
18
2
17
15