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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:61AF GHM

Order: 18

Horizontal side: 61 Vertical side: 61

Elements: 4, 4√2, 8, 7√2, 12, 9√2, 14, 15, 11√2, 16, 12√2, 18, 15√2, 22, 16√2, 30, 32, 45.

Code: 457 0 61 323 45 29 162 61 45 161 61 61 303 61 15 96 4 20 187 13 29 76 24 22 147 31 29 116 13 11 225 24 0 46 0 16 85 4 12 45 0 12 154 46 0 153 61 0 127 0 12 120 12 12

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)

45
32
16√2
16
30
9√2
18
7√2
14
11√2
22
4√2
8
4
15√2
15
12
12√2