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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:56AG GHM

Order: 18

Horizontal side: 56 Vertical side: 56

Elements: 3, 6, 8√2, 12, 9√2, 15, 11√2, 16, 12√2, 17, 18, 15√2, 22, 16√2, 23, 17√2, 18√2, 22√2.

Code: 225 0 34 224 22 34 153 44 41 127 44 56 126 44 44 35 44 41 180 29 41 181 47 41 92 56 32 172 17 17 114 11 23 166 40 16 61 17 23 235 17 0 154 32 8 173 17 0 86 32 8 165 40 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)

22
22√2
15
12
12√2
3
18√2
18
9√2
17√2
11√2
16√2
6
23
15√2
17
8√2
16