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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:136AC GHM

Order: 18

Horizontal side: 136 Vertical side: 136

Elements: 4, 8, 8√2, 16, 12√2, 24, 17√2, 30, 24√2, 34, 38, 30√2, 34√2, 36√2, 64, 72, 51√2, 68√2.

Code: 725 0 64 684 68 68 516 85 85 170 85 85 41 72 68 302 102 38 301 102 68 342 136 34 645 0 0 364 36 28 246 48 40 126 36 28 245 48 16 383 102 0 343 136 0 161 64 16 82 72 8 81 72 16

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)

72
68√2
51√2
17√2
4
30√2
30
34√2
64
36√2
24√2
12√2
24
38
34
16
8√2
8