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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:27AA GHM

Order: 19

Horizontal side: 27 Vertical side: 27

Elements: 1, 1√2, 2, 2√2, 4, 3√2, 5, 4√2, 6, 7, 5√2, 8, 6√2, 9, 8√2, 12, 9√2, 11√2, 18.

Code: 185 0 9 114 11 16 50 22 27 51 27 27 20 17 22 21 19 22 87 19 22 86 19 14 40 15 20 41 19 20 71 18 16 17 18 16 16 18 15 32 21 12 123 21 0 62 27 6 95 0 0 94 9 0 63 27 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)

18
11√2
5√2
5
2√2
2
8
8√2
4√2
4
7
1
1√2
3√2
12
6√2
9
9√2
6