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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:138BN GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1, 1√2, 2, 3, 6, 6√2, 12, 12√2, 24, 21√2, 24√2, 45, 46, 47, 48, 45√2, 46√2, 92, 69√2.

Code: 925 0 46 694 69 69 483 138 90 216 69 69 245 90 66 244 114 66 456 93 45 125 90 54 124 102 54 65 90 48 64 96 48 21 92 48 12 93 47 11 93 48 37 93 48 473 93 0 465 0 0 464 46 0 455 93 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)

92
69√2
48
21√2
24
24√2
45√2
12
12√2
6
6√2
2
1√2
1
3
47
46
46√2
45