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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:221AD GHM

Order: 19

Horizontal side: 221 Vertical side: 221

Elements: 13, 13√2, 22, 22√2, 32, 44, 34√2, 49, 62, 44√2, 66, 68, 49√2, 55√2, 88, 89, 66√2, 110, 155.

Code: 1557 0 221 496 106 172 667 155 221 666 155 155 623 106 110 495 106 123 325 155 123 137 106 123 130 119 123 681 187 123 342 221 89 446 0 66 887 44 110 1103 132 0 552 187 55 893 221 0 445 0 22 225 0 0 224 22 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)

155
49√2
66
66√2
62
49
32
13
13√2
68
34√2
44√2
88
110
55√2
89
44
22
22√2