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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:204BE GHM

Order: 19

Horizontal side: 204 Vertical side: 204

Elements: 4√2, 5√2, 8, 10, 10√2, 15√2, 30, 26√2, 42, 30√2, 38√2, 60, 64, 68, 76, 64√2, 68√2, 136, 140.

Code: 1405 0 64 1361 136 204 682 204 136 681 204 204 603 204 76 83 144 68 305 144 46 304 174 46 763 204 0 44 140 64 423 144 26 647 0 64 640 64 64 384 102 26 102 154 36 154 159 31 103 154 26 52 159 31 264 128 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)

140
136
68√2
68
60
8
30
30√2
76
4√2
42
64
64√2
38√2
10√2
15√2
10
5√2
26√2