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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:136AS GHM

Order: 18

Horizontal side: 136 Vertical side: 136

Elements: 1√2, 2, 2√2, 3√2, 6, 5√2, 6√2, 12, 11√2, 17√2, 34, 46, 34√2, 45√2, 46√2, 68, 90, 68√2.

Code: 905 0 46 684 68 68 683 136 68 174 85 51 123 102 56 347 102 68 346 102 34 56 85 51 65 90 50 64 96 50 116 91 45 22 92 48 34 93 47 23 92 46 12 93 47 465 0 0 464 46 0 450 91 45

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)

90
68√2
68
17√2
12
34
34√2
5√2
6
6√2
11√2
2√2
3√2
2
1√2
46
46√2
45√2