OFFSET
0,4
LINKS
Index entries for linear recurrences with constant coefficients, signature (-1,0,1,1,1,1,0,-1,-1).
FORMULA
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
PROG
(PARI) a(n)=n\2+n\3+n\5 \\ Charles R Greathouse IV, Dec 04 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, Jan 19 2007
STATUS
approved