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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220CO GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 4√2, 8, 7√2, 8√2, 12, 14, 12√2, 14√2, 24, 32√2, 64, 78, 60√2, 64√2, 92, 71√2, 78√2, 128, 142.

Code: 1425 0 78 1281 128 220 602 188 160 921 220 220 320 188 160 243 156 104 647 156 128 646 156 64 40 132 104 124 144 92 123 156 92 87 128 100 80 136 100 144 142 78 143 156 78 785 0 0 784 78 0 76 149 71 710 149 71

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)

142
128
60√2
92
32√2
24
64
64√2
4√2
12√2
12
8
8√2
14√2
14
78
78√2
7√2
71√2