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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:84AX GHM

Order: 18

Horizontal side: 84 Vertical side: 84

Elements: 1, 2, 3, 3√2, 6, 5√2, 10, 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 56 59 37 105 64 32 104 74 32 216 63 21 63 59 31 32 62 34 33 62 31 25 62 32 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
5√2
10
10√2
21√2
6
3√2
3
2
1
32
11
31
31√2
21