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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:154AI GHM

Order: 18

Horizontal side: 154 Vertical side: 154

Elements: 11√2, 14√2, 20, 21, 22, 28, 34, 28√2, 42, 43, 44, 34√2, 54, 56, 44√2, 55√2, 56√2, 77√2.

Code: 772 77 77 564 56 98 563 112 98 282 140 126 421 154 154 283 140 98 142 154 112 346 120 78 211 77 98 437 77 98 543 120 44 207 120 98 345 120 44 223 77 55 550 55 55 114 66 44 444 110 0 443 154 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)

77√2
56√2
56
28√2
42
28
14√2
34√2
21
43
54
20
34
22
55√2
11√2
44√2
44