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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:56BD JDS

Order: 18

Horizontal side: 56 Vertical side: 56

Elements: 1√2, 2, 4, 5, 7, 5√2, 8, 7√2, 8√2, 12, 14, 16, 14√2, 20, 28, 20√2, 36, 28√2.

Code: 365 0 20 284 28 28 283 56 28 74 35 21 73 42 21 147 42 28 146 42 14 14 36 20 50 37 21 51 42 21 207 0 20 200 20 20 121 32 20 47 32 20 87 32 16 86 32 8 165 40 0 21 42 16

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)

36
28√2
28
7√2
7
14
14√2
1√2
5√2
5
20
20√2
12
4
8
8√2
16
2