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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:78AY GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2, 2√2, 3, 4, 6, 8, 10, 10√2, 15, 12√2, 20, 21, 15√2, 24, 27, 27√2, 39, 51, 39√2.

Code: 515 0 27 394 39 39 393 78 39 124 51 27 150 63 39 151 78 39 277 0 27 270 27 27 211 48 27 37 48 27 107 48 24 106 48 14 207 58 24 243 78 0 85 48 6 61 54 6 27 54 6 20 56 6 47 54 4

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)

51
39√2
39
12√2
15√2
15
27
27√2
21
3
10
10√2
20
24
8
6
2
2√2
4