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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:65AA GHM

Order: 18

Horizontal side: 65 Vertical side: 65

Elements: 2, 2√2, 3√2, 6, 6√2, 9, 12, 15, 12√2, 17, 21, 15√2, 23, 21√2, 30, 23√2, 33, 44.

Code: 447 0 65 173 44 48 217 44 65 216 44 44 150 27 48 151 42 48 27 42 48 26 42 46 232 65 23 126 0 21 307 12 33 333 42 0 233 65 0 125 0 9 95 0 0 64 6 3 63 12 3 34 9 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)

44
17
21
21√2
15√2
15
2
2√2
23√2
12√2
30
33
23
12
9
6√2
6
3√2