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A251551 a(n) = A251546(n) - A251549(n). 3
-1, 1, -1, 1, 1, 1, 1, 1, -1, 3, 3, 3, 3, 3, -1, 7, 7, 7, 7, 7, 7, 5, 1, 1, 1, 1, 1, 1, 1, -1, 5, 5, 11, 11, 11, 11, 11, 11, 19, 19, 21, 21, 17, 17, 17, 17, 17, 23, 23, 23, 17, 17, 17, 17, 17, 25, 25, 25, 25, 25, 23, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,10
LINKS
PROG
(Haskell)
a251551 n = a251546 n - a251549 n -- Reinhard Zumkeller, Dec 19 2014
CROSSREFS
Sequence in context: A097675 A141605 A356002 * A073139 A122845 A135203
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Dec 18 2014
STATUS
approved

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)