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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:110BB GHM

Order: 18

Horizontal side: 110 Vertical side: 110

Elements: 1, 9√2, 14, 10√2, 11√2, 18, 19, 14√2, 20, 18√2, 27, 28, 21√2, 41, 55, 41√2, 69, 55√2.

Code: 695 0 41 554 55 55 553 110 55 144 69 41 143 83 41 182 101 37 271 110 55 417 0 41 410 41 41 214 62 20 116 72 30 183 101 19 92 110 28 100 72 30 283 110 0 201 82 20 15 82 19 197 82 19

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)

69
55√2
55
14√2
14
18√2
27
41
41√2
21√2
11√2
18
9√2
10√2
28
20
1
19