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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:218BO GHM

Order: 19

Horizontal side: 218 Vertical side: 218

Elements: 1√2, 2, 6√2, 12, 12√2, 24, 19√2, 40, 30√2, 36√2, 40√2, 42√2, 60, 80, 84, 60√2, 79√2, 97√2, 158.

Code: 1587 0 218 803 158 138 602 218 158 601 218 218 796 139 79 420 78 138 404 118 98 403 158 98 21 120 98 12 121 97 194 139 79 970 121 97 366 0 60 847 36 96 302 30 30 60 30 30 243 24 0 122 36 12 121 36 24

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)

158
80
60√2
60
79√2
42√2
40√2
40
2
1√2
19√2
97√2
36√2
84
30√2
6√2
24
12√2
12