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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:50AC GHM

Order: 18

Horizontal side: 50 Vertical side: 50

Elements: 1, 1√2, 2, 3, 4, 3√2, 5, 4√2, 6, 8, 11, 8√2, 16, 23, 19√2, 27, 23√2, 25√2.

Code: 275 0 23 254 25 25 196 31 31 63 31 25 115 31 20 34 28 22 53 31 20 237 0 23 230 23 23 31 26 23 17 26 23 10 27 23 27 26 22 161 42 20 82 50 12 83 50 4 44 46 0 43 50 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)

27
25√2
19√2
6
11
3√2
5
23
23√2
3
1
1√2
2
16
8√2
8
4√2
4