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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:212BS GHM

Order: 19

Horizontal side: 212 Vertical side: 212

Elements: 1√2, 2, 2√2, 4, 18√2, 28, 21√2, 25√2, 28√2, 42, 50, 39√2, 56, 67, 78, 67√2, 106, 145, 106√2.

Code: 1455 0 67 1064 106 106 1063 212 106 394 145 67 563 184 50 282 212 78 281 212 106 783 212 0 677 0 67 670 67 67 421 109 67 212 130 46 184 127 49 16 127 49 27 128 50 26 128 48 47 130 50 256 109 25 507 134 50

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)

145
106√2
106
39√2
56
28√2
28
78
67
67√2
42
21√2
18√2
1√2
2
2√2
4
25√2
50