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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:144AM GHM

Order: 19

Horizontal side: 144 Vertical side: 144

Elements: 2√2, 4, 4√2, 8, 8√2, 10√2, 16, 20, 16√2, 21√2, 40, 42, 52, 40√2, 41√2, 62, 52√2, 82, 72√2.

Code: 825 0 62 724 72 72 526 92 92 203 92 72 525 92 40 104 82 62 166 76 56 625 0 0 414 41 21 86 68 48 165 76 40 46 64 44 85 68 40 26 62 42 45 64 40 216 41 21 425 62 0 404 104 0 403 144 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)

82
72√2
52√2
20
52
10√2
16√2
62
41√2
8√2
16
4√2
8
2√2
4
21√2
42
40√2
40