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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:80AW GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 1, 4, 4√2, 8, 6√2, 8√2, 9√2, 10√2, 16, 12√2, 17, 18, 20, 22, 31, 40, 31√2, 49, 40√2.

Code: 495 0 31 404 40 40 403 80 40 94 49 31 100 58 40 221 80 40 317 0 31 310 31 31 171 48 31 17 48 31 165 48 14 201 68 30 122 80 18 183 80 0 84 56 6 83 64 6 42 68 10 43 68 6 64 62 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)

49
40√2
40
9√2
10√2
22
31
31√2
17
1
16
20
12√2
18
8√2
8
4√2
4
6√2