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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:84AW GHM

Order: 18

Horizontal side: 84 Vertical side: 84

Elements: 1, 2, 2√2, 4, 6, 6√2, 9, 11, 10√2, 11√2, 21, 21√2, 31, 32, 42, 31√2, 53, 42√2.

Code: 535 0 31 424 42 42 423 84 42 114 53 31 26 62 40 45 64 38 104 74 32 216 63 21 93 62 31 25 62 38 67 62 38 60 68 38 17 62 32 323 63 0 117 63 32 315 0 0 314 31 0 215 63 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)

53
42√2
42
11√2
2√2
4
10√2
21√2
9
2
6
6√2
1
32
11
31
31√2
21