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A025799 Expansion of 1/((1-x^2)(1-x^3)(1-x^10)). 1
1, 0, 1, 1, 1, 1, 2, 1, 2, 2, 3, 2, 4, 3, 4, 4, 5, 4, 6, 5, 7, 6, 8, 7, 9, 8, 10, 9, 11, 10, 13, 11, 14, 13, 15, 14, 17, 15, 18, 17, 20, 18, 22, 20, 23, 22, 25, 23, 27, 25, 29, 27, 31, 29, 33, 31, 35, 33, 37, 35, 40, 37, 42, 40, 44, 42, 47, 44, 49, 47, 52, 49, 55, 52, 57, 55, 60, 57 (list; graph; refs; listen; history; internal format)
OFFSET

0,7

FORMULA

G.f.: 1/((1-x^2)(1-x^3)(1-x^10)).

a(n)=a(-15-n). - Michael Somos Nov 16 2005

PROG

(PARI) a(n)=polcoeff(1/(1-x^2)/(1-x^3)/(1-x^10)+x*O(x^n), n)

(PARI) a(n)=n=(n-3*(n%2))/2; (n^2+9*n)\30+1 /* Michael Somos Nov 16 2005 */

CROSSREFS

a(n)=A008672(A028242(n-2)). a(2n+3)=a(2n)=A008672(n).

Sequence in context: A025066 A172245 A051275 * A053267 A058768 A127682

Adjacent sequences:  A025796 A025797 A025798 * A025800 A025801 A025802

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 06:22 EST 2012. Contains 205860 sequences.