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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:56AC GHM

Order: 19

Horizontal side: 56 Vertical side: 56

Elements: 2, 2√2, 4, 4√2, 6, 5√2, 8, 10, 8√2, 9√2, 14, 16, 12√2, 18, 16√2, 24, 20√2, 24√2, 28√2.

Code: 282 28 28 244 24 32 63 48 50 87 48 56 103 56 46 183 42 32 92 51 41 41 46 50 22 48 48 21 48 50 54 51 41 143 56 32 44 28 28 126 20 20 247 32 32 166 40 16 200 20 20 86 32 8 165 40 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√2
24√2
6
8
10
18
9√2
4
2√2
2
5√2
14
4√2
12√2
24
16√2
20√2
8√2
16