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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:64AR JDS

Order: 18

Horizontal side: 64 Vertical side: 64

Elements: 1√2, 2, 2√2, 4, 4√2, 8, 10, 12, 14, 10√2, 12√2, 20, 15√2, 22, 22√2, 32, 42, 32√2.

Code: 425 0 22 324 32 32 323 64 32 104 42 22 103 52 22 122 64 20 121 64 32 227 0 22 220 22 22 154 37 7 143 52 8 203 64 0 16 37 7 27 38 8 26 38 6 47 40 8 46 40 4 87 44 8

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)

42
32√2
32
10√2
10
12√2
12
22
22√2
15√2
14
20
1√2
2
2√2
4
4√2
8