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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:72AU GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 1, 3√2, 5, 6, 8√2, 9√2, 11√2, 16, 17, 18, 19, 16√2, 18√2, 19√2, 35, 37, 27√2, 36√2.

Code: 375 0 35 364 36 36 276 45 45 90 45 45 11 37 36 65 37 30 171 54 36 182 72 18 355 0 0 164 16 19 163 32 19 82 40 27 51 37 35 34 40 27 110 43 30 194 35 0 193 54 0 183 72 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)

37
36√2
27√2
9√2
1
6
17
18√2
35
16√2
16
8√2
5
3√2
11√2
19√2
19
18