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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:156BH GHM

Order: 19

Horizontal side: 156 Vertical side: 156

Elements: 4√2, 8, 8√2, 12, 9√2, 18, 13√2, 17√2, 28, 20√2, 40, 30√2, 39√2, 40√2, 60, 48√2, 78, 96, 78√2.

Code: 965 0 60 784 78 78 783 156 78 181 96 78 132 109 65 304 126 48 396 117 39 170 109 65 605 0 0 404 40 20 403 80 20 125 80 48 84 88 52 83 96 52 44 92 48 287 80 48 480 108 48 94 117 39 204 60 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)

96
78√2
78
18
13√2
30√2
39√2
17√2
60
40√2
40
12
8√2
8
4√2
28
48√2
9√2
20√2