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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:74AI GHM

Order: 18

Horizontal side: 74 Vertical side: 74

Elements: 2, 4, 3√2, 6, 8, 6√2, 7√2, 8√2, 14, 16, 14√2, 20, 23, 30, 37, 30√2, 44, 37√2.

Code: 445 0 30 374 37 37 373 74 37 74 44 30 30 51 37 231 74 37 43 48 30 67 48 34 66 48 28 205 54 14 307 0 30 300 30 30 161 46 30 82 54 22 21 48 30 83 54 14 144 60 0 143 74 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)

44
37√2
37
7√2
3√2
23
4
6
6√2
20
30
30√2
16
8√2
2
8
14√2
14