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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AN GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 1√2, 2, 7, 7√2, 11, 9√2, 15, 11√2, 16, 15√2, 16√2, 23, 26, 32, 39, 41, 32√2, 40√2.

Code: 417 0 80 263 41 54 397 41 80 406 40 40 150 15 54 151 30 54 112 41 43 111 41 54 23 41 41 90 39 41 14 40 40 237 0 39 70 23 39 71 30 39 166 0 16 327 16 32 320 48 32 165 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)

41
26
39
40√2
15√2
15
11√2
11
2
9√2
1√2
23
7√2
7
16√2
32
32√2
16