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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:108AF GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 1√2, 8, 8√2, 11√2, 16, 22, 16√2, 26, 28, 26√2, 27√2, 28√2, 40, 30√2, 52, 56, 40√2, 41√2.

Code: 412 41 67 304 30 78 80 60 108 81 68 108 407 68 108 406 68 68 223 52 78 167 52 100 166 52 84 565 52 28 114 41 67 523 52 26 12 53 27 284 80 0 283 108 0 270 53 27 265 0 0 264 26 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√2
30√2
8√2
8
40
40√2
22
16
16√2
56
11√2
52
1√2
28√2
28
27√2
26
26√2