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Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:108AC2of4 GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 8, 8√2, 16, 13√2, 14√2, 22, 16√2, 26, 28, 30, 26√2, 28√2, 40, 30√2, 52, 39√2, 40√2, 42√2.

Code: 405 0 68 404 40 68 146 66 94 287 80 108 286 80 80 420 66 94 87 0 68 86 0 60 165 8 52 164 24 52 302 30 30 221 30 52 527 30 52 136 69 39 267 82 52 266 82 26 390 69 39 303 30 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
14√2
28
28√2
42√2
8
8√2
16
16√2
30√2
22
52
13√2
26
26√2
39√2
30