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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:154AK GHM

Order: 18

Horizontal side: 154 Vertical side: 154

Elements: 5, 5√2, 14√2, 21, 15√2, 16√2, 28, 30, 31, 28√2, 42, 31√2, 56, 67, 72, 56√2, 82, 77√2.

Code: 827 0 154 673 82 87 727 82 154 776 77 77 150 15 87 314 46 56 313 77 56 52 82 82 51 82 87 215 77 56 307 0 72 160 30 72 146 0 42 287 14 56 286 14 28 567 42 56 560 98 56 425 0 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)

82
67
72
77√2
15√2
31√2
31
5√2
5
21
30
16√2
14√2
28
28√2
56
56√2
42