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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:91AB1of4 GHM

Order: 19

Horizontal side: 91 Vertical side: 91

Elements: 4, 4√2, 8, 10, 8√2, 12, 10√2, 12√2, 17, 20, 17√2, 27, 22√2, 37, 27√2, 44, 47, 37√2, 54.

Code: 545 0 37 441 44 91 222 66 69 471 91 91 46 62 65 85 66 61 86 54 57 45 62 61 127 62 61 126 62 49 172 91 44 106 44 47 205 54 37 173 91 27 375 0 0 374 37 0 103 74 27 270 64 27 271 91 27

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)

54
44
22√2
47
4√2
8
8√2
4
12
12√2
17√2
10√2
20
17
37
37√2
10
27√2
27