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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:142AR GHM

Order: 19

Horizontal side: 142 Vertical side: 142

Elements: 1, 1√2, 2, 2√2, 5, 6, 7, 9, 11√2, 22, 22√2, 38, 44, 49, 60, 71, 82, 60√2, 71√2.

Code: 825 0 60 714 71 71 713 142 71 114 82 60 26 91 69 55 93 66 491 142 71 93 91 60 25 91 67 75 91 60 14 92 66 13 93 66 61 98 66 445 98 22 607 0 60 600 60 60 381 98 60 224 120 0 223 142 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)

82
71√2
71
11√2
2√2
5
49
9
2
7
1√2
1
6
44
60
60√2
38
22√2
22