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A017896 Expansion of 1/(1-x^10-x^11-x^12-x^13-x^14-x^15-x^16-x^17-x^18-x^19-x^20). 0
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 18, 22, 27, 33, 40, 48, 57, 68, 79, 92, 107, 125, 147, 174, 207, 247, 295, 353, 420, 499, 591, 698, 823, 970, 1144, 1351, 1598, 1894, 2246, 2666, 3165, 3756 (list; graph; refs; listen; history; internal format)
OFFSET

0,21

MAPLE

a:= n -> (Matrix(20, (i, j)-> if (i=j-1) or (j=1 and member (i, [k$k=10..20])) then 1 else 0 fi)^n)[1, 1]: seq (a(n), n=0..70); # Alois P. Heinz, Aug 04 2008

CROSSREFS

Sequence in context: A034138 A011879 A011878 * A118868 A017885 A011874

Adjacent sequences:  A017893 A017894 A017895 * A017897 A017898 A017899

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 08:49 EST 2012. Contains 205893 sequences.