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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:89AF GHM

Order: 18

Horizontal side: 89 Vertical side: 89

Elements: 1, 4, 3√2, 5, 4√2, 6, 5√2, 7√2, 11, 14, 14√2, 25, 25√2, 36, 32√2, 50, 39√2, 64.

Code: 647 0 89 503 64 39 252 89 64 251 89 89 326 57 32 146 0 25 367 14 39 390 50 39 74 57 32 145 0 11 115 0 0 54 5 6 53 10 6 47 10 11 46 10 7 15 10 6 61 11 6 32 14 3

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)

64
50
25√2
25
32√2
14√2
36
39√2
7√2
14
11
5√2
5
4
4√2
1
6
3√2