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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:128AM GHM

Order: 19

Horizontal side: 128 Vertical side: 128

Elements: 3√2, 6, 5√2, 10, 9√2, 16, 18, 18√2, 19√2, 22√2, 23√2, 38, 27√2, 46, 36√2, 54, 46√2, 74, 64√2.

Code: 747 0 128 383 74 90 547 74 128 646 64 64 366 0 54 222 58 68 194 55 71 163 74 74 36 55 71 67 58 74 56 59 69 107 64 74 230 59 69 272 27 27 467 36 46 460 82 46 90 27 27 180 18 18 181 36 18

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)

74
38
54
64√2
36√2
22√2
19√2
16
3√2
6
5√2
10
23√2
27√2
46
46√2
9√2
18√2
18