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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:221AB GHM

Order: 19

Horizontal side: 221 Vertical side: 221

Elements: 2√2, 4, 4√2, 6, 7, 6√2, 7√2, 12, 25, 25√2, 57, 75, 57√2, 82, 89, 75√2, 82√2, 139, 146.

Code: 1465 0 75 1391 139 221 827 139 221 826 139 139 252 164 114 253 164 89 572 221 57 77 139 89 76 139 82 67 146 89 66 146 83 127 152 89 893 164 0 42 150 79 43 150 75 22 152 77 755 0 0 754 75 0 573 221 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)

146
139
82
82√2
25√2
25
57√2
7
7√2
6
6√2
12
89
4√2
4
2√2
75
75√2
57