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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:158AW GHM

Order: 19

Horizontal side: 158 Vertical side: 158

Elements: 4, 9, 9√2, 13, 11√2, 13√2, 20, 15√2, 19√2, 20√2, 30, 40, 30√2, 49, 64, 79, 64√2, 94, 79√2.

Code: 945 0 64 794 79 79 793 158 79 154 94 64 190 109 79 491 158 79 647 0 64 640 64 64 134 77 51 133 90 51 47 90 64 95 90 51 94 99 51 200 108 60 201 128 60 302 158 30 114 88 40 401 128 40 303 158 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)

94
79√2
79
15√2
19√2
49
64
64√2
13√2
13
4
9
9√2
20√2
20
30√2
11√2
40
30