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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216CQ GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 1√2, 2, 2√2, 4, 6, 7√2, 10√2, 20, 17√2, 34, 37√2, 54, 74, 54√2, 88, 74√2, 108, 142, 108√2.

Code: 1425 0 74 1084 108 108 1083 216 108 341 142 108 205 142 88 374 179 71 546 162 54 72 149 81 104 152 78 883 162 0 172 179 71 10 149 81 63 148 74 27 148 80 20 150 80 47 148 78 745 0 0 744 74 0 545 162 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)

142
108√2
108
34
20
37√2
54√2
7√2
10√2
88
17√2
1√2
6
2
2√2
4
74
74√2
54