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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:40AK1of2 GHM

Order: 18

Horizontal side: 40 Vertical side: 40

Elements: 1, 1√2, 2, 2√2, 4, 5, 4√2, 6, 7, 8, 7√2, 8√2, 12, 13, 20, 24, 18√2, 20√2.

Code: 247 0 40 40 24 40 41 28 40 127 28 40 206 20 20 186 2 18 82 28 28 81 28 36 205 20 0 26 0 16 55 2 13 25 0 14 72 7 7 14 1 13 13 2 13 61 7 13 135 7 0 73 7 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)

24
4√2
4
12
20√2
18√2
8√2
8
20
2√2
5
2
7√2
1√2
1
6
13
7