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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:54AA1of2 GHM

Order: 18

Horizontal side: 54 Vertical side: 54

Elements: 1√2, 4√2, 6, 8, 6√2, 8√2, 12, 13, 15, 16, 12√2, 18, 13√2, 15√2, 24, 26, 30, 24√2.

Code: 307 0 54 240 30 54 241 54 54 60 6 30 61 12 30 187 12 30 46 26 26 87 30 30 86 30 22 167 38 30 156 39 15 263 26 0 132 39 13 122 12 12 121 12 24 16 38 14 155 39 0 133 39 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)

30
24√2
24
6√2
6
18
4√2
8
8√2
16
15√2
26
13√2
12√2
12
1√2
15
13