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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:144AN GHM

Order: 18

Horizontal side: 144 Vertical side: 144

Elements: 4, 4√2, 8, 8√2, 15, 16, 14√2, 15√2, 28, 30, 28√2, 42, 45, 57, 72, 57√2, 87, 72√2.

Code: 875 0 57 724 72 72 723 144 72 154 87 57 153 102 57 282 130 44 421 144 72 577 0 57 570 57 57 451 102 57 283 130 16 142 144 30 303 144 0 47 102 16 46 102 12 87 106 16 86 106 8 167 114 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)

87
72√2
72
15√2
15
28√2
42
57
57√2
45
28
14√2
30
4
4√2
8
8√2
16