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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:54AD GHM

Order: 18

Horizontal side: 54 Vertical side: 54

Elements: 1√2, 3, 3√2, 4√2, 6, 8, 9, 7√2, 8√2, 13, 14, 10√2, 16, 20, 27, 20√2, 34, 27√2.

Code: 345 0 20 274 27 27 273 54 27 74 34 20 63 41 21 32 44 24 131 54 27 33 44 21 102 54 14 10 35 21 91 44 21 207 0 20 200 20 20 161 36 20 82 44 12 143 54 0 83 44 4 44 40 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)

34
27√2
27
7√2
6
3√2
13
3
10√2
1√2
9
20
20√2
16
8√2
14
8
4√2