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A092149 Partial sums of A092673. 2
1, -1, -2, -1, -2, 0, -1, -1, -1, 1, 0, -1, -2, 0, 1, 1, 0, 0, -1, -2, -1, 1, 0, 0, 0, 2, 2, 1, 0, -2, -3, -3, -2, 0, 1, 1, 0, 2, 3, 3, 2, 0, -1, -2, -2, 0, -1, -1, -1, -1, 0, -1, -2, -2, -1, -1, 0, 2, 1, 2, 1, 3, 3, 3, 4, 2, 1, 0, 1, -1, -2, -2, -3, -1, -1, -2, -1, -3, -4, -4, -4, -2, -3, -2, -1, 1, 2, 2, 1, 1, 2, 1, 2, 4, 5, 5, 4, 4, 4, 4, 3, 1, 0, 0, -1, 1 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

FORMULA

G.f. Sum_{n >= 1} a(n)*(x^n)/((1-x^n)*(x^(n+1)-1))*x = -(x^2) and -1/x. [From Mats Granvik (mats.granvik(AT)abo.fi), Oct 11 2010]

CROSSREFS

Sequence in context: A094114 A104607 A120728 * A171099 A127173 A035160

Adjacent sequences:  A092146 A092147 A092148 * A092150 A092151 A092152

KEYWORD

sign

AUTHOR

Jon Perry (perry(AT)globalnet.co.uk), Mar 31 2004

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Last modified February 14 13:08 EST 2012. Contains 205623 sequences.