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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:156AB GHM

Order: 18

Horizontal side: 156 Vertical side: 156

Elements: 5√2, 10, 10√2, 20, 28, 20√2, 32, 30√2, 32√2, 34√2, 54, 58, 60, 44√2, 68, 49√2, 58√2, 68√2.

Code: 685 0 88 684 68 88 106 126 146 207 136 156 206 136 136 603 126 86 302 156 116 586 98 58 442 44 44 344 34 54 320 66 86 321 98 86 287 98 86 585 98 0 101 44 54 52 49 49 541 98 54 490 49 49

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
68√2
10√2
20
20√2
60
30√2
58√2
44√2
34√2
32√2
32
28
58
10
5√2
54
49√2