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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:82AF GHM

Order: 19

Horizontal side: 82 Vertical side: 82

Elements: 1√2, 2, 8, 9, 8√2, 15, 16, 17, 19, 21, 16√2, 17√2, 25, 21√2, 32, 25√2, 40, 42, 41√2.

Code: 425 0 40 414 41 41 323 82 50 86 42 42 165 50 34 164 66 34 256 57 25 16 41 41 85 42 34 405 0 0 214 21 19 213 42 19 157 42 34 176 40 17 97 57 34 255 57 0 191 40 19 27 40 19 175 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)

42
41√2
32
8√2
16
16√2
25√2
1√2
8
40
21√2
21
15
17√2
9
25
19
2
17