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A089254 G.f.: Product_{m>=1} 1/(1+x^m)^A000009(m). 6
1, -1, 0, -2, 1, -2, 2, -2, 5, -3, 8, -3, 13, -6, 16, -15, 21, -28, 21, -52, 22, -90, 23, -136, 40, -190, 79, -237, 185, -254, 385, -219, 740, -116, 1279, 49, 2039, 198, 2923, 130, 3785, -541, 4215, -2464, 3638, -6581, 1204, -14062, -3889, -26110, -12267, -43399, -23264, -65206, -34085, -87955, -37666 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..56.

CROSSREFS

Cf. A050342, A000009, A001970, A089259.

Sequence in context: A071227 A285442 A108115 * A279861 A321431 A140085

Adjacent sequences:  A089251 A089252 A089253 * A089255 A089256 A089257

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Dec 23 2003

STATUS

approved

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Last modified September 17 11:03 EDT 2019. Contains 327129 sequences. (Running on oeis4.)