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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:54AI GHM

Order: 19

Horizontal side: 54 Vertical side: 54

Elements: 2, 2√2, 4, 4√2, 6, 5√2, 8, 6√2, 7√2, 10, 8√2, 12, 15, 16, 21, 27, 21√2, 33, 27√2.

Code: 335 0 21 274 27 27 273 54 27 64 33 21 63 39 21 85 39 19 151 54 27 217 0 21 210 21 21 161 37 21 82 45 13 21 39 21 44 43 15 43 47 15 72 54 12 24 45 13 103 47 5 123 54 0 54 42 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)

33
27√2
27
6√2
6
8
15
21
21√2
16
8√2
2
4√2
4
7√2
2√2
10
12
5√2