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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:84AC GHM

Order: 19

Horizontal side: 84 Vertical side: 84

Elements: 2√2, 4, 4√2, 8, 6√2, 9, 8√2, 14, 18, 14√2, 21, 15√2, 18√2, 28, 21√2, 36, 33√2, 36√2, 42√2.

Code: 422 42 42 364 36 48 26 70 82 47 72 84 46 72 80 87 76 84 86 76 76 283 70 54 142 84 68 143 84 54 66 36 48 215 42 33 214 63 33 363 84 18 93 42 33 330 33 33 154 48 18 184 66 0 183 84 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)

42√2
36√2
2√2
4
4√2
8
8√2
28
14√2
14
6√2
21
21√2
36
9
33√2
15√2
18√2
18