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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:72BI GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 2, 2√2, 4, 6, 8, 6√2, 7√2, 8√2, 14, 16, 13√2, 20, 24, 28, 36, 28√2, 44, 36√2.

Code: 445 0 28 364 36 36 363 72 36 84 44 28 83 52 28 132 65 23 201 72 36 287 0 28 280 28 28 241 52 28 70 65 23 66 52 10 147 58 16 163 72 0 65 52 4 41 56 4 22 58 2 21 58 4

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)

44
36√2
36
8√2
8
13√2
20
28
28√2
24
7√2
6√2
14
16
6
4
2√2
2