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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:128AK GHM

Order: 18

Horizontal side: 128 Vertical side: 128

Elements: 2√2, 4, 4√2, 6√2, 12, 10√2, 11√2, 20, 22, 21√2, 32, 42, 44, 54, 42√2, 44√2, 84, 64√2.

Code: 845 0 44 644 64 64 543 128 74 100 74 74 221 96 74 112 107 63 321 128 74 201 84 64 125 84 52 210 107 63 42 88 48 64 90 46 43 88 44 22 90 46 445 0 0 444 44 0 420 86 42 421 128 42

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)

84
64√2
54
10√2
22
11√2
32
20
12
21√2
4√2
6√2
4
2√2
44
44√2
42√2
42