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Primitive Perfect Isosceles Right Triangled Square

Title: _ 15:42AO JDS

Order: 15

Horizontal side: 42 Vertical side: 42

Elements: 1√2, 2, 2√2, 3, 4, 7, 10, 11, 14, 10√2, 18, 14√2, 21, 28, 21√2.

Code: 285 0 14 214 21 21 213 42 21 71 28 21 37 28 21 10 31 21 111 42 21 20 30 20 21 32 20 102 42 10 47 28 18 183 32 0 145 0 0 144 14 0 103 42 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)

28
21√2
21
7
3
1√2
11
2√2
2
10√2
4
18
14
14√2
10