OFFSET
0,3
COMMENTS
Some integers (see A047406) are missing.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..10000
N. J. A. Sloane, Transforms
FORMULA
Lodumo_8 transform of A000045 (for definition see Transforms).
Conjecture: a(n) = 2*a(n-6)-a(n-12). - Colin Barker, Oct 04 2014
Empirical g.f.: x*(7*x^10 +x^9 +6*x^8 +3*x^7 +11*x^6 +8*x^5 +5*x^4 +3*x^3 +2*x^2 +9*x +1) / ((x -1)^2*(x +1)^2*(x^2 -x +1)^2*(x^2 +x +1)^2). - Colin Barker, Oct 04 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Philippe Deléham, May 02 2009
EXTENSIONS
Replaced 35 by 33 - R. J. Mathar, May 03 2009
STATUS
approved