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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:62AI GHM

Order: 18

Horizontal side: 62 Vertical side: 62

Elements: 1, 1√2, 5, 7, 5√2, 8, 9, 7√2, 9√2, 14, 18, 13√2, 22, 18√2, 26, 22√2, 40, 31√2.

Code: 405 0 22 314 31 31 263 62 36 50 36 36 51 41 36 77 41 36 76 41 29 147 48 36 186 44 18 91 40 31 17 40 31 16 40 30 85 40 22 227 0 22 220 22 22 134 35 9 96 35 9 185 44 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)

40
31√2
26
5√2
5
7
7√2
14
18√2
9
1
1√2
8
22
22√2
13√2
9√2
18