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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:121AC GHM

Order: 19

Horizontal side: 121 Vertical side: 121

Elements: 3, 9, 18, 13√2, 20, 23, 18√2, 26, 27, 29, 36, 26√2, 38, 27√2, 45, 38√2, 45√2, 47√2, 76.

Code: 767 0 121 450 76 121 451 121 121 136 18 63 265 31 50 264 57 50 293 83 47 387 83 76 386 83 38 186 0 45 365 18 27 231 54 50 37 54 50 207 54 47 470 74 47 91 83 47 185 0 27 275 0 0 274 27 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)

76
45√2
45
13√2
26
26√2
29
38
38√2
18√2
36
23
3
20
47√2
9
18
27
27√2