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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:148AN GHM

Order: 18

Horizontal side: 148 Vertical side: 148

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 9√2, 17√2, 34, 26√2, 40, 31√2, 34√2, 57, 74, 57√2, 91, 74√2.

Code: 915 0 57 744 74 74 743 148 74 174 91 57 83 108 66 62 114 68 401 148 74 63 114 62 342 148 34 90 100 66 44 104 62 43 108 62 54 109 57 316 83 31 577 0 57 570 57 57 264 83 31 343 148 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
74√2
74
17√2
8
6√2
40
6
34√2
9√2
4√2
4
5√2
31√2
57
57√2
26√2
34