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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:156AH GHM

Order: 18

Horizontal side: 156 Vertical side: 156

Elements: 6, 5√2, 10, 11√2, 14√2, 22, 28, 21√2, 36, 26√2, 28√2, 42, 31√2, 57, 78, 57√2, 99, 78√2.

Code: 995 0 57 784 78 78 783 156 78 214 99 57 116 109 67 225 120 56 361 156 78 103 109 57 52 114 62 316 83 31 65 114 56 577 0 57 570 57 57 264 83 31 282 142 28 281 142 56 142 156 42 423 156 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)

99
78√2
78
21√2
11√2
22
36
10
5√2
31√2
6
57
57√2
26√2
28√2
28
14√2
42