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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:154AW GHM

Order: 18

Horizontal side: 154 Vertical side: 154

Elements: 2√2, 12, 12√2, 24, 17√2, 18√2, 19√2, 21√2, 23√2, 35, 36, 38, 42, 56, 77, 56√2, 98, 77√2.

Code: 985 0 56 774 77 77 773 154 77 214 98 56 230 119 77 351 154 77 567 0 56 560 56 56 381 94 56 192 113 37 24 96 54 174 113 37 363 130 18 127 130 54 120 142 54 247 130 42 423 154 0 184 112 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)

98
77√2
77
21√2
23√2
35
56
56√2
38
19√2
2√2
17√2
36
12
12√2
24
42
18√2