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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:46AM GHM

Order: 19

Horizontal side: 46 Vertical side: 46

Elements: 1, 1√2, 2√2, 4, 3√2, 5, 6, 5√2, 8, 6√2, 10, 8√2, 13, 10√2, 18, 23, 18√2, 28, 23√2.

Code: 285 0 18 234 23 23 233 46 23 54 28 18 20 33 23 131 46 23 30 31 21 41 35 21 55 35 16 187 0 18 180 18 18 84 26 10 83 34 10 12 35 17 13 35 16 67 34 16 60 40 16 104 36 0 103 46 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)

28
23√2
23
5√2
2√2
13
3√2
4
5
18
18√2
8√2
8
1√2
1
6
6√2
10√2
10