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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:136CJ GHM

Order: 19

Horizontal side: 136 Vertical side: 136

Elements: 2√2, 4, 4√2, 6√2, 12, 12√2, 21, 22, 24, 25, 22√2, 23√2, 44, 45, 46, 45√2, 68, 91, 68√2.

Code: 915 0 45 684 68 68 683 136 68 234 91 45 443 114 24 222 136 46 221 136 68 463 136 0 457 0 45 450 45 45 251 70 45 217 70 45 45 70 20 44 74 20 66 72 18 127 78 24 126 78 12 247 90 24 24 72 18

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)

91
68√2
68
23√2
44
22√2
22
46
45
45√2
25
21
4
4√2
6√2
12
12√2
24
2√2