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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220CR GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2, 2√2, 4, 4√2, 6√2, 7√2, 14, 14√2, 17√2, 34, 38, 38√2, 72, 76, 72√2, 76√2, 110, 144, 110√2.

Code: 1445 0 76 1104 110 110 1103 220 110 341 144 110 142 158 96 384 182 72 383 220 72 143 158 82 72 165 89 170 165 89 27 144 82 20 146 82 64 152 76 47 144 80 40 148 80 765 0 0 764 76 0 720 148 72 721 220 72

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)

144
110√2
110
34
14√2
38√2
38
14
7√2
17√2
2
2√2
6√2
4
4√2
76
76√2
72√2
72