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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:80AZ3of4 GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 1, 1√2, 2, 2√2, 4, 4√2, 7, 7√2, 11√2, 18, 22, 18√2, 29, 22√2, 40, 29√2, 51, 40√2.

Code: 515 0 29 404 40 40 403 80 40 114 51 29 180 62 40 181 80 40 297 0 29 290 29 29 74 36 22 10 43 29 11 44 29 77 44 29 20 42 28 21 44 28 40 40 26 41 44 26 224 58 0 223 80 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)

51
40√2
40
11√2
18√2
18
29
29√2
7√2
1√2
1
7
2√2
2
4√2
4
22√2
22