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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:136BQ JDS

Order: 19

Horizontal side: 136 Vertical side: 136

Elements: 1√2, 2, 2√2, 5, 7, 9, 10√2, 11√2, 16, 21, 26, 21√2, 42, 52, 42√2, 47√2, 52√2, 84, 68√2.

Code: 845 0 52 684 68 68 476 89 89 213 89 68 265 89 63 161 84 68 75 84 61 51 89 68 24 91 61 23 93 61 12 94 62 114 104 52 210 115 63 100 94 62 97 84 61 525 0 0 524 52 0 420 94 42 421 136 42

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)

84
68√2
47√2
21
26
16
7
5
2√2
2
1√2
11√2
21√2
10√2
9
52
52√2
42√2
42