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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:68AJ GHM

Order: 18

Horizontal side: 68 Vertical side: 68

Elements: 3√2, 6, 5√2, 6√2, 10, 8√2, 9√2, 14, 10√2, 16, 18, 20, 18√2, 26, 21√2, 32, 42, 34√2.

Code: 425 0 26 344 34 34 186 50 50 163 50 34 185 50 32 84 42 26 143 50 20 62 56 26 94 59 23 323 68 0 265 0 0 214 21 5 63 56 20 32 59 23 106 26 10 207 36 20 56 21 5 105 26 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)

42
34√2
18√2
16
18
8√2
14
6√2
9√2
32
26
21√2
6
3√2
10√2
20
5√2
10