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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:140AJ GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 1√2, 2, 2√2, 4, 6, 7√2, 14, 14√2, 20, 28, 20√2, 28√2, 40, 40√2, 42√2, 64, 56√2, 80, 70√2.

Code: 805 0 60 704 70 70 566 84 84 143 84 70 422 126 42 74 77 63 63 84 64 16 77 63 27 78 64 26 78 62 47 80 64 643 84 0 405 0 20 404 40 20 140 126 42 280 112 28 281 140 28 205 0 0 204 20 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)

80
70√2
56√2
14
42√2
7√2
6
1√2
2
2√2
4
64
40
40√2
14√2
28√2
28
20
20√2