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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:30AC GHM

Order: 18

Horizontal side: 30 Vertical side: 30

Elements: 1√2, 2, 2√2, 4, 3√2, 5, 4√2, 6, 5√2, 8, 6√2, 9, 8√2, 12, 13, 17, 18, 13√2.

Code: 187 0 30 80 18 30 81 26 30 42 30 26 41 30 30 136 17 13 16 9 21 27 10 22 26 10 20 52 17 17 51 17 22 97 17 22 30 9 21 60 6 18 61 12 18 173 17 0 135 17 0 127 0 12

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)

18
8√2
8
4√2
4
13√2
1√2
2
2√2
5√2
5
9
3√2
6√2
6
17
13
12