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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:148AM GHM

Order: 19

Horizontal side: 148 Vertical side: 148

Elements: 4, 3√2, 4√2, 6, 8, 12, 16, 20√2, 37, 40, 43, 31√2, 34√2, 37√2, 40√2, 68, 74, 80, 74√2.

Code: 805 0 68 744 74 74 743 148 74 61 80 74 312 111 43 344 114 40 376 111 37 685 0 0 404 40 28 403 80 28 433 111 0 32 114 40 375 111 0 204 60 8 163 80 12 40 64 12 41 68 12 127 68 12 81 68 8

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
74√2
74
6
31√2
34√2
37√2
68
40√2
40
43
3√2
37
20√2
16
4√2
4
12
8