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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:154AJ GHM

Order: 18

Horizontal side: 154 Vertical side: 154

Elements: 5√2, 16, 14√2, 21, 16√2, 28, 30, 31, 28√2, 42, 31√2, 46, 36√2, 56, 72, 56√2, 82, 77√2.

Code: 827 0 154 463 82 108 307 82 154 140 112 154 421 154 154 166 82 124 287 98 140 280 126 140 165 82 108 567 98 112 566 98 56 360 36 108 314 67 77 313 98 77 54 72 72 770 77 77 211 98 77 727 0 72

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
46
30
14√2
42
16√2
28
28√2
16
56
56√2
36√2
31√2
31
5√2
77√2
21
72