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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:144BG GHM

Order: 19

Horizontal side: 144 Vertical side: 144

Elements: 3√2, 6, 6√2, 9, 12, 17, 18, 13√2, 17√2, 21√2, 34, 25√2, 38, 34√2, 55, 72, 55√2, 89, 72√2.

Code: 895 0 55 724 72 72 723 144 72 174 89 55 173 106 55 132 119 59 381 144 72 250 119 59 557 0 55 550 55 55 214 76 34 30 97 55 91 106 55 183 94 34 67 94 52 60 100 52 127 94 46 344 110 0 343 144 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)

89
72√2
72
17√2
17
13√2
38
25√2
55
55√2
21√2
3√2
9
18
6
6√2
12
34√2
34