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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:166AP GHM

Order: 19

Horizontal side: 166 Vertical side: 166

Elements: 3, 18, 21, 24, 18√2, 24√2, 36, 37, 28√2, 48, 36√2, 37√2, 55, 56, 72, 74, 55√2, 56√2, 74√2.

Code: 745 0 92 744 74 92 180 148 166 181 166 166 723 130 76 362 166 112 361 166 148 566 110 56 375 0 55 374 37 55 213 58 55 247 58 76 246 58 52 487 82 76 286 82 28 565 110 0 557 0 55 550 55 55 31 58 55

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
74√2
18√2
18
72
36√2
36
56√2
37
37√2
21
24
24√2
48
28√2
56
55
55√2
3