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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:91AA GHM

Order: 19

Horizontal side: 91 Vertical side: 91

Elements: 8, 8√2, 14, 10√2, 16, 17, 20, 23, 24, 17√2, 20√2, 31, 23√2, 24√2, 34, 37, 30√2, 34√2, 37√2.

Code: 375 0 54 374 37 54 170 74 91 171 91 91 340 57 74 341 91 74 237 0 54 236 0 31 147 23 54 245 23 16 244 47 16 106 61 30 207 71 40 206 71 20 315 0 0 300 61 30 87 23 16 86 23 8 167 31 16

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)

37
37√2
17√2
17
34√2
34
23
23√2
14
24
24√2
10√2
20
20√2
31
30√2
8
8√2
16