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A131725
Partial sums of A131711.
1
0, 1, 3, 8, 10, 19, 19, 28, 36, 41, 49, 50, 50, 51, 53, 58, 60, 69, 69, 78, 86, 91, 99, 100, 100, 101, 103, 108, 110, 119, 119, 128, 136, 141, 149, 150, 150, 151, 153, 158, 160, 169, 169, 178, 186, 191, 199, 200
OFFSET
0,3
FORMULA
O.g.f.: x*(x^8+8x^7+4x^6+5x^4+4x^2+2x+1)/((x-1)^2*(1+x)*(x^2+x+1)*(x^2-x+1)*(x^4-x^2+1)). - R. J. Mathar, Jul 04 2008
a(n) = a(n-1) + a(n-2) - a(n-3) - a(n-4) + a(n-5) + a(n-6) - a(n-7) - a(n-8) + a(n-9) + a(n-10) - a(n-11) for n > 10. - Chai Wah Wu, Jan 09 2021
CROSSREFS
Cf. A131711.
Sequence in context: A079541 A283757 A353078 * A346370 A373200 A332976
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Sep 16 2007
EXTENSIONS
Edited by R. J. Mathar, Jul 04 2008
STATUS
approved