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Primitive Perfect Isosceles Right Triangled Square

Title: _r 18:108AW1of4 GHM

Order: 18

Horizontal side: 108 Vertical side: 108

Elements: 3, 3√2, 4√2, 5√2, 8, 7√2, 10, 8√2, 13, 14, 24, 24√2, 36, 48, 36√2, 42√2, 72, 54√2.

Code: 725 0 36 544 54 54 426 66 66 40 66 66 80 62 62 81 70 62 145 70 48 131 67 54 37 67 54 36 67 51 105 67 41 74 77 41 483 84 0 242 108 24 54 72 36 365 0 0 364 36 0 243 108 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)

72
54√2
42√2
4√2
8√2
8
14
13
3
3√2
10
7√2
48
24√2
5√2
36
36√2
24