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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:136AU GHM

Order: 18

Horizontal side: 136 Vertical side: 136

Elements: 2, 2√2, 4, 4√2, 7, 8, 8√2, 15, 11√2, 22, 23√2, 46, 34√2, 45√2, 46√2, 68, 90, 68√2.

Code: 905 0 46 684 68 68 683 136 68 221 90 68 82 98 60 234 113 45 346 102 34 83 98 52 155 98 45 45 90 48 44 94 48 73 98 45 25 90 46 24 92 46 465 0 0 464 46 0 450 91 45 114 102 34

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
22
8√2
23√2
34√2
8
15
4
4√2
7
2
2√2
46
46√2
45√2
11√2