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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:161AC GHM

Order: 18

Horizontal side: 161 Vertical side: 161

Elements: 24, 27, 20√2, 24√2, 35, 27√2, 40, 46, 48, 34√2, 35√2, 54, 59, 46√2, 67, 68, 80, 67√2.

Code: 807 0 161 460 80 161 461 126 161 352 161 126 351 161 161 593 161 67 346 0 81 687 34 115 483 102 67 242 126 91 241 126 115 545 0 27 206 34 47 407 54 67 670 94 67 671 161 67 275 0 0 274 27 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)

80
46√2
46
35√2
35
59
34√2
68
48
24√2
24
54
20√2
40
67√2
67
27
27√2