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A002980 Expansion of 1/(1-sin(x)+sin(x)^2-sin(x)^3). +0
1
1, 0, 1, 1, -1, 3, 24, 4, 121, 5, -480, 6, -4201, 7, 48384, 8, 478801, 9, -4968960, 10, -62871601, 11, 885586944, 12, 12996863881, 13, -203910819840, 14, -3476839930201, 15, 63397697224704, 16, 1221998040867361 (list; graph; listen)
OFFSET

0,6
CROSSREFS

Sequence in context: A113577 A120085 A062834 this_sequence A047980 A084702 A065430

Adjacent sequences: A002977 A002978 A002979 this_sequence A002981 A002982 A002983

KEYWORD

sign

AUTHOR

njas

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

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