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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:51AA GHM

Order: 18

Horizontal side: 51 Vertical side: 51

Elements: 3√2, 4√2, 6, 7, 8, 7√2, 8√2, 12, 14, 15, 16, 21, 15√2, 16√2, 23, 24, 18√2, 20√2.

Code: 237 0 51 160 23 51 161 39 51 82 47 43 121 51 51 83 47 35 42 51 39 243 51 15 76 0 28 145 7 21 204 27 15 75 0 21 217 0 21 36 18 18 65 21 15 180 18 18 154 36 0 153 51 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)

23
16√2
16
8√2
12
8
4√2
24
7√2
14
20√2
7
21
3√2
6
18√2
15√2
15