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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:56AU GHM

Order: 19

Horizontal side: 56 Vertical side: 56

Elements: 1√2, 2, 3√2, 6, 5√2, 8, 6√2, 10, 12, 10√2, 17, 18, 19, 20, 16√2, 18√2, 19√2, 21√2, 38.

Code: 387 0 56 203 38 36 102 48 46 101 48 56 52 53 51 81 56 56 30 53 51 123 50 36 62 56 42 61 56 48 216 35 21 186 0 18 175 18 19 164 34 20 16 34 20 25 35 19 197 18 19 190 37 19 185 0 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)

38
20
10√2
10
5√2
8
3√2
12
6√2
6
21√2
18√2
17
16√2
1√2
2
19
19√2
18