A093393 - OEIS

%I #4 Mar 30 2012 18:50:43

%S 0,0,0,1,2,2,2,4,6,7,7,8,9,9,9,10,12,13,14,15,16,16,16,17,18,19,20,22,

%T 23,23,23,24,25,25,26,28,30,30,30,31,32,32,32,34,36,37,37,38,39,39,39,

%U 40,42,43,44,45,46,46,46,47,48,49,50,52,53,53,53,54,55,55,56,58,60,60

%N [n/9] + [n/4] + [(n+1)/9] + [(n+1)/4] + [(n+2)/9].

%C a(n) = A004524(n) + A093390(n).

%F G.f.:(x^3*(2*x^6+x^4+x^3+1))/((x^2+1)*(x^6+x^3+1)*(x-1)^2) [From Maksym Voznyy (voznyy(AT)mail.ru), Jul 27 2009]

%K nonn

%O 0,5

%A _Reinhard Zumkeller_, Mar 28 2004