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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:164AS GHM

Order: 18

Horizontal side: 164 Vertical side: 164

Elements: 1√2, 3√2, 6, 6√2, 12, 10√2, 11√2, 18, 20, 20√2, 21√2, 41√2, 62, 51√2, 82, 62√2, 102, 82√2.

Code: 1025 0 62 824 82 82 823 164 82 204 102 62 30 122 82 214 143 61 416 123 41 60 119 79 61 125 79 185 125 61 110 113 73 121 125 73 625 0 0 624 62 0 10 124 62 106 113 51 207 123 61 510 113 51

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)

102
82√2
82
20√2
3√2
21√2
41√2
6√2
6
18
11√2
12
62
62√2
1√2
10√2
20
51√2