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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:74AM GHM

Order: 18

Horizontal side: 74 Vertical side: 74

Elements: 2, 2√2, 5, 5√2, 8, 9, 8√2, 9√2, 11√2, 16, 18, 21, 16√2, 29, 37, 29√2, 45, 37√2.

Code: 455 0 29 374 37 37 373 74 37 84 45 29 83 53 29 52 58 32 211 74 37 53 58 27 162 74 16 297 0 29 290 29 29 114 40 18 20 51 29 21 53 29 90 49 27 91 58 27 181 58 18 163 74 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)

45
37√2
37
8√2
8
5√2
21
5
16√2
29
29√2
11√2
2√2
2
9√2
9
18
16