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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:72BK GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 1, 1√2, 2, 2√2, 8√2, 13, 14, 15, 11√2, 16, 17, 14√2, 22, 25, 25√2, 36, 47, 36√2.

Code: 475 0 25 364 36 36 363 72 36 114 47 25 133 58 23 142 72 22 141 72 36 257 0 25 250 25 25 171 42 25 17 42 25 16 42 24 25 43 23 24 45 23 165 42 8 151 58 23 223 72 0 84 50 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)

47
36√2
36
11√2
13
14√2
14
25
25√2
17
1
1√2
2
2√2
16
15
22
8√2