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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:108AS2of2 GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 1, 2√2, 4, 4√2, 8, 6√2, 13, 14, 13√2, 14√2, 27, 27√2, 40, 41, 54, 40√2, 68, 54√2.

Code: 685 0 40 544 54 54 543 108 54 144 68 40 83 82 46 135 82 41 134 95 41 276 81 27 60 74 46 44 78 42 43 82 42 24 80 40 13 82 41 413 81 0 147 81 41 405 0 0 404 40 0 275 81 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)

68
54√2
54
14√2
8
13
13√2
27√2
6√2
4√2
4
2√2
1
41
14
40
40√2
27