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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:116AA GHM

Order: 18

Horizontal side: 116 Vertical side: 116

Elements: 11√2, 18, 21, 22, 18√2, 20√2, 21√2, 22√2, 36, 38, 40, 42, 45, 33√2, 36√2, 38√2, 56, 40√2.

Code: 405 0 76 404 40 76 186 62 98 367 80 116 366 80 80 423 62 56 212 83 77 213 83 56 332 116 44 382 38 38 204 20 56 181 38 56 565 38 0 451 83 56 226 94 22 383 38 0 116 83 11 225 94 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)

40
40√2
18√2
36
36√2
42
21√2
21
33√2
38√2
20√2
18
56
45
22√2
38
11√2
22