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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:141AB GHM

Order: 18

Horizontal side: 141 Vertical side: 141

Elements: 3, 3√2, 6, 6√2, 9√2, 20, 20√2, 30, 40, 41, 30√2, 50, 40√2, 41√2, 70, 50√2, 71, 91.

Code: 917 0 141 713 91 70 507 91 141 506 91 91 92 100 82 66 94 76 412 141 41 36 91 73 65 94 70 35 91 70 206 0 50 405 20 30 404 60 30 703 100 0 205 0 30 413 141 0 305 0 0 304 30 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)

91
71
50
50√2
9√2
6√2
41√2
3√2
6
3
20√2
40
40√2
70
20
41
30
30√2