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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:38AE GHM

Order: 19

Horizontal side: 38 Vertical side: 38

Elements: 1, 1√2, 2√2, 3, 4, 3√2, 4√2, 6√2, 9, 10, 11, 12, 9√2, 14, 10√2, 12√2, 18, 14√2, 19√2.

Code: 192 19 19 181 18 38 92 27 29 104 28 28 103 38 28 93 27 20 15 27 28 117 27 28 146 24 14 14 19 19 26 18 18 47 20 20 46 20 16 32 27 17 31 27 20 60 18 18 145 24 0 120 12 12 121 24 12

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)

19√2
18
9√2
10√2
10
9
1
11
14√2
1√2
2√2
4
4√2
3√2
3
6√2
14
12√2
12