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A110686 Expansion of (2*x+1)*(4*x^2+8*x+1)/((x-1)*(3*x^2+3*x+1)*(2*x^3+2*x^2+4*x+1)). 3
-1, -4, 14, -49, 158, -538, 1877, -6688, 24026, -86557, 311882, -1123270, 4043813, -14554252, 52377062, -188485501, 678287318, -2440910842, 8784002237, -31610714104, 113756642690, -409373197645, 1473201178034, -5301572184286, 19078633788629 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..24.

MAPLE

seriestolist(series((2*x+1)*(4*x^2+8*x+1)/((x-1)*(3*x^2+3*x+1)*(2*x^3+2*x^2+4*x+1)), x=0, 25)); -or- Floretion Algebra Multiplication Program, FAMP Code: tessum(infty)-4basekforsumseq[ + 'i - .25'j + .25'k - .25j' + .25k' - .5'ii' - .25'ij' - .25'ik' - .25'ji' - .25'ki' - .5e], Sumtype is set to: sum[Y[15]] = sum[ * ], Fortype is set to: 1A.

PROG

(PARI) Vec((2*x+1)*(4*x^2+8*x+1)/((x-1)*(3*x^2+3*x+1)*(2*x^3+2*x^2+4*x+1))+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2012

CROSSREFS

Cf. A110683, A110684, A110685.

Sequence in context: A047138 A111299 A245824 * A071729 A278692 A071733

Adjacent sequences:  A110683 A110684 A110685 * A110687 A110688 A110689

KEYWORD

sign,easy

AUTHOR

Creighton Dement, Aug 02 2005

STATUS

approved

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Last modified March 30 18:30 EDT 2017. Contains 284302 sequences.