0,4

Table of n, a(n) for n=0..74.

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

G.f.: x^2*(1-x)(3x^6+6x^5+7x^4+6x^3+5x^2+3x+1)/[(1-x^2)(1-x^3)(1-x^5) ].

a(n) = kn + O(1), where k = 31/30. - Charles R Greathouse IV, Dec 04 2013

(PARI) a(n)=n\2+n\3+n\5 \\ Charles R Greathouse IV, Dec 04 2013

Sequence in context: A297351 A060019 A093451 * A050460 A246594 A175808

Adjacent sequences: A106003 A106004 A106005 * A106007 A106008 A106009

nonn,easy

Jonathan Vos Post, Jan 19 2007

approved