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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:57AB GHM

Order: 18

Horizontal side: 57 Vertical side: 57

Elements: 3, 6, 6√2, 10, 12, 9√2, 10√2, 15, 12√2, 17, 18, 13√2, 20, 17√2, 18√2, 27, 20√2, 34.

Code: 277 0 57 186 9 39 107 27 57 106 27 47 207 37 57 206 37 37 132 40 34 96 0 30 185 9 21 343 40 0 172 57 17 122 12 18 31 12 21 157 12 21 123 12 6 173 57 0 65 0 0 64 6 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)

27
18√2
10
10√2
20
20√2
13√2
9√2
18
34
17√2
12√2
3
15
12
17
6
6√2