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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:196AN GHM

Order: 18

Horizontal side: 196 Vertical side: 196

Elements: 1√2, 4√2, 6, 5√2, 6√2, 12, 12√2, 15√2, 22, 30, 34√2, 68, 49√2, 64√2, 68√2, 98, 128, 98√2.

Code: 1285 0 68 984 98 98 983 196 98 301 128 98 122 140 86 344 162 64 496 147 49 123 140 74 225 140 64 65 128 68 64 134 68 56 135 69 10 135 69 685 0 0 684 68 0 40 136 68 640 132 64 154 147 49

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)

128
98√2
98
30
12√2
34√2
49√2
12
22
6
6√2
5√2
1√2
68
68√2
4√2
64√2
15√2