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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:312AO GHM

Order: 19

Horizontal side: 312 Vertical side: 312

Elements: 8√2, 16, 16√2, 24√2, 36, 42, 32√2, 39√2, 40√2, 42√2, 78, 80, 78√2, 80√2, 114, 120, 117√2, 192, 156√2.

Code: 1925 0 120 1564 156 156 1176 195 195 390 195 195 361 192 156 422 234 114 421 234 156 782 312 78 1205 0 0 804 80 40 803 160 40 165 160 104 164 176 104 246 168 96 1143 234 0 322 192 72 84 168 96 783 312 0 404 120 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)

192
156√2
117√2
39√2
36
42√2
42
78√2
120
80√2
80
16
16√2
24√2
114
32√2
8√2
78
40√2