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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:36AC1of2 GHM

Order: 18

Horizontal side: 36 Vertical side: 36

Elements: 1, 1√2, 2, 2√2, 4, 3√2, 5, 4√2, 6, 8, 7√2, 8√2, 12, 10√2, 16, 20, 16√2, 18√2.

Code: 207 0 36 160 20 36 161 36 36 40 4 20 41 8 20 127 8 20 20 20 20 21 22 20 12 23 19 74 29 13 106 26 10 13 23 18 65 23 13 180 18 18 51 23 18 82 8 8 81 8 16 34 26 10

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)

20
16√2
16
4√2
4
12
2√2
2
1√2
7√2
10√2
1
6
18√2
5
8√2
8
3√2