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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:81AB GHM

Order: 19

Horizontal side: 81 Vertical side: 81

Elements: 8, 6√2, 8√2, 12, 16, 12√2, 19, 21, 16√2, 26, 19√2, 20√2, 29, 21√2, 31, 34, 36, 40, 31√2.

Code: 367 0 81 200 36 81 261 62 81 192 81 62 191 81 81 316 50 31 166 0 45 407 16 61 60 56 61 343 50 21 122 62 43 121 62 55 165 0 29 315 50 0 295 0 0 84 8 21 83 16 21 214 29 0 213 50 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)

36
20√2
26
19√2
19
31√2
16√2
40
6√2
34
12√2
12
16
31
29
8√2
8
21√2
21