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A126611 Sum x+y of generator pairs (x, y) {x and y coprime and not both odd} of primitive Pythagorean triangles, sorted. 2
3, 5, 5, 7, 7, 7, 9, 9, 9, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 27, 27, 27, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Also, the square root of the sum of even leg and hypotenuse of primitive Pythagorean triangles, sorted.
LINKS
FORMULA
2n-1 appears A072451(n) times.
CROSSREFS
Sequence in context: A111800 A190136 A360635 * A164019 A307701 A103332
KEYWORD
nonn
AUTHOR
Lekraj Beedassy, Feb 07 2007
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)