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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:304AN GHM

Order: 19

Horizontal side: 304 Vertical side: 304

Elements: 7√2, 14, 14√2, 20, 20√2, 21√2, 40, 42, 40√2, 70, 72, 52√2, 80, 70√2, 112, 152, 112√2, 192, 152√2.

Code: 1925 0 112 1524 152 152 1523 304 152 404 192 112 403 232 112 202 252 132 721 304 152 203 252 112 522 304 80 1127 0 112 1120 112 112 704 182 42 703 252 42 803 304 0 421 224 42 212 245 21 144 238 28 143 252 28 74 245 21

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)

192
152√2
152
40√2
40
20√2
72
20
52√2
112
112√2
70√2
70
80
42
21√2
14√2
14
7√2