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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:122CD4of4 GHM

Order: 19

Horizontal side: 122 Vertical side: 122

Elements: 1, 1√2, 2, 2√2, 3√2, 7, 7√2, 10, 10√2, 17√2, 27, 34, 27√2, 44, 34√2, 61, 44√2, 78, 61√2.

Code: 785 0 44 614 61 61 613 122 61 174 78 44 270 95 61 271 122 61 447 0 44 440 44 44 104 54 34 103 64 34 75 64 37 74 71 37 17 64 37 10 65 37 34 68 34 27 64 36 20 66 36 344 88 0 343 122 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)

78
61√2
61
17√2
27√2
27
44
44√2
10√2
10
7
7√2
1
1√2
3√2
2
2√2
34√2
34