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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:78AZ2of4 GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2, 2√2, 4, 3√2, 4√2, 6, 14, 10√2, 12√2, 20, 15√2, 24, 27, 20√2, 30, 24√2, 27√2, 48, 51.

Code: 515 0 27 481 48 78 202 68 58 301 78 78 203 68 38 102 78 48 246 54 24 42 52 34 41 52 38 22 54 36 21 54 38 147 54 38 63 54 30 34 51 27 156 39 15 277 0 27 270 27 27 124 39 15 245 54 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)

51
48
20√2
30
20
10√2
24√2
4√2
4
2√2
2
14
6
3√2
15√2
27
27√2
12√2
24