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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:122AK GHM

Order: 18

Horizontal side: 122 Vertical side: 122

Elements: 6, 6√2, 12, 16, 12√2, 21, 16√2, 24, 21√2, 32, 24√2, 37, 32√2, 48, 53, 69, 74, 53√2.

Code: 747 0 122 320 74 122 321 106 122 162 122 106 161 122 122 536 69 53 60 42 90 61 48 90 212 69 69 211 69 90 377 69 90 120 36 84 121 48 84 240 24 72 241 48 72 693 69 0 535 69 0 487 0 48

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)

74
32√2
32
16√2
16
53√2
6√2
6
21√2
21
37
12√2
12
24√2
24
69
53
48