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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AX1of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1√2, 2, 2√2, 4, 4√2, 7, 7√2, 14, 15, 18√2, 33, 36, 33√2, 36√2, 51, 69, 51√2, 87, 69√2.

Code: 875 0 51 694 69 69 693 138 69 184 87 51 330 105 69 331 138 69 517 0 51 510 51 51 141 65 51 72 72 44 71 72 51 157 72 51 46 68 40 26 66 38 45 68 36 16 65 37 25 66 36 364 102 0 363 138 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)

87
69√2
69
18√2
33√2
33
51
51√2
14
7√2
7
15
4√2
2√2
4
1√2
2
36√2
36