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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:312AN GHM

Order: 19

Horizontal side: 312 Vertical side: 312

Elements: 12√2, 24, 18√2, 30, 24√2, 34, 36, 34√2, 35√2, 54, 68, 53√2, 88, 68√2, 122, 156, 122√2, 190, 156√2.

Code: 1905 0 122 1564 156 156 1563 312 156 344 190 122 343 224 122 352 259 121 881 312 156 1227 0 122 1220 122 122 541 176 122 245 176 98 244 200 98 363 224 86 530 259 121 305 176 68 124 188 86 184 206 68 684 244 0 683 312 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)

190
156√2
156
34√2
34
35√2
88
122
122√2
54
24
24√2
36
53√2
30
12√2
18√2
68√2
68