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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:172AA GHM

Order: 19

Horizontal side: 172 Vertical side: 172

Elements: 1√2, 4√2, 8, 18, 18√2, 36, 26√2, 52, 54, 55, 57, 58, 60, 62, 55√2, 56√2, 57√2, 58√2, 60√2.

Code: 607 0 172 606 0 112 552 115 117 551 115 172 577 115 172 576 115 115 16 114 116 543 114 62 582 172 58 562 56 56 187 60 62 186 60 44 367 78 62 623 114 0 583 172 0 40 56 56 523 52 0 262 78 26 81 60 52

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)

60
60√2
55√2
55
57
57√2
1√2
54
58√2
56√2
18
18√2
36
62
58
4√2
52
26√2
8