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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:156BG2of2 GHM

Order: 19

Horizontal side: 156 Vertical side: 156

Elements: 4√2, 8, 8√2, 9√2, 12√2, 18, 16√2, 20√2, 21√2, 30, 40, 30√2, 48, 40√2, 60, 48√2, 78, 96, 78√2.

Code: 965 0 60 784 78 78 783 156 78 181 96 78 212 117 57 304 126 48 303 156 48 605 0 0 404 40 20 403 80 20 85 80 52 84 88 52 126 84 48 90 117 57 162 96 36 44 84 48 480 108 48 481 156 48 204 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
21√2
30√2
30
60
40√2
40
8
8√2
12√2
9√2
16√2
4√2
48√2
48
20√2