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Primitive Perfect Isosceles Right Triangled Square

Title: _ 15:42AB GHM

Order: 15

Horizontal side: 42 Vertical side: 42

Elements: 1, 1√2, 4√2, 8, 6√2, 9, 10, 8√2, 12, 16, 12√2, 18, 24, 17√2, 21√2.

Code: 245 0 18 214 21 21 176 25 25 46 21 21 95 25 16 185 0 0 124 12 6 123 24 6 12 25 17 13 25 16 107 24 16 163 34 0 82 42 8 83 42 0 64 18 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)

24
21√2
17√2
4√2
9
18
12√2
12
1√2
1
10
16
8√2
8
6√2