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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:172BE GHM

Order: 19

Horizontal side: 172 Vertical side: 172

Elements: 2, 2√2, 4, 6, 6√2, 12, 11√2, 20, 22, 21√2, 22√2, 43, 43√2, 64, 65, 86, 64√2, 108, 86√2.

Code: 1085 0 64 864 86 86 863 172 86 224 108 64 26 128 84 45 130 82 214 151 65 436 129 43 203 128 64 25 128 82 67 128 82 60 134 82 127 128 76 110 140 76 653 129 0 227 129 65 645 0 0 644 64 0 435 129 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)

108
86√2
86
22√2
2√2
4
21√2
43√2
20
2
6
6√2
12
11√2
65
22
64
64√2
43