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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:144AS GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 4, 4√2, 7, 8, 8√2, 16, 28, 21√2, 30, 35, 28√2, 42, 30√2, 51, 72, 51√2, 93, 72√2.

Code: 935 0 51 724 72 72 723 144 72 214 93 51 286 86 44 302 144 42 301 144 72 517 0 51 510 51 51 351 86 51 77 86 51 285 86 16 423 144 0 161 102 16 82 110 8 81 110 16 42 114 12 41 114 16

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)

93
72√2
72
21√2
28√2
30√2
30
51
51√2
35
7
28
42
16
8√2
8
4√2
4