1,1

Table of n, a(n) for n=1..56.

Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,1,-1)

G.f. x*(2+x+x^2+x^3+x^4+x^5) / ( (x^4+x^3+x^2+x+1)*(x-1)^2 ). - R. J. Mathar, Oct 25 2011

Sequence in context: A031487 A047422 A160532 * A032878 A032845 A023776

Adjacent sequences: A047302 A047303 A047304 * A047306 A047307 A047308

nonn

N. J. A. Sloane.

approved