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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:78AS1of4 JDS

Order: 18

Horizontal side: 78 Vertical side: 78

Elements: 1, 1√2, 2, 3, 3√2, 6, 5√2, 6√2, 11√2, 17, 22, 17√2, 28, 22√2, 39, 28√2, 50, 39√2.

Code: 505 0 28 394 39 39 393 78 39 114 50 28 170 61 39 171 78 39 287 0 28 280 28 28 54 33 23 36 35 25 65 38 22 64 44 22 23 35 23 35 35 22 14 34 22 13 35 22 224 56 0 223 78 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)

50
39√2
39
11√2
17√2
17
28
28√2
5√2
3√2
6
6√2
2
3
1√2
1
22√2
22