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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:56BE GHM

Order: 18

Horizontal side: 56 Vertical side: 56

Elements: 1, 2, 2√2, 3, 4, 5, 5√2, 9, 9√2, 14, 10√2, 18, 19, 14√2, 19√2, 28, 37, 28√2.

Code: 375 0 19 284 28 28 283 56 28 91 37 28 57 37 28 56 37 23 147 42 28 146 42 14 22 39 21 23 39 19 35 39 18 197 0 19 190 19 19 104 29 9 13 39 18 96 29 9 185 38 0 41 42 18

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)

37
28√2
28
9
5
5√2
14
14√2
2√2
2
3
19
19√2
10√2
1
9√2
18
4