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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:78AP GHM

Order: 18

Horizontal side: 78 Vertical side: 78

Elements: 5, 5√2, 7√2, 10, 8√2, 9√2, 14, 10√2, 18, 13√2, 25, 18√2, 28, 32, 23√2, 25√2, 46, 39√2.

Code: 465 0 32 394 39 39 256 53 53 143 53 39 255 53 28 74 46 32 86 45 31 325 0 0 234 23 9 130 45 31 57 53 28 56 53 23 105 58 18 104 68 18 283 78 0 96 23 9 185 32 0 184 50 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)

46
39√2
25√2
14
25
7√2
8√2
32
23√2
13√2
5
5√2
10
10√2
28
9√2
18
18√2