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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:108BH GHM

Order: 19

Horizontal side: 108 Vertical side: 108

Elements: 2√2, 4, 4√2, 7, 8, 7√2, 14, 10√2, 14√2, 20, 21, 20√2, 21√2, 40, 34√2, 35√2, 40√2, 66, 54√2.

Code: 665 0 42 544 54 54 346 74 74 203 74 54 142 88 60 200 88 60 104 64 44 83 74 46 26 64 44 45 66 42 44 70 42 212 21 21 354 35 7 400 68 40 401 108 40 213 21 0 145 21 7 75 21 0 74 28 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)

66
54√2
34√2
20
14√2
20√2
10√2
8
2√2
4
4√2
21√2
35√2
40√2
40
21
14
7
7√2