A071581 - OEIS

%I #8 Mar 30 2012 18:39:02

%S 3,5,7,6,6,8,7,9,6,4,6,4,3,10,9,4,2,8,6,5,4,9,6,3,-4,-4,-2,2,4,11,2,2,

%T 0,2,0,1,0,-2,5,0,-2,0,-7,-5,-4,-2,-10,-14,-14,-12,0,-3,-4,-10,-9,-14,

%U -16,-3,-8,-4,-2,-9,-14,-10,-4,-4,-14,-8,-15,-12,-12,-15,-18,-20,-6,-7

%N A003656(n)-prime(n).

%C a(n)=0 for n = 33, 35, 37, 40, 42, 51 ...

%K sign

%O 1,1

%A _Benoit Cloitre_, Jun 01 2002

%E More terms from _Max Alekseyev_, Jun 27 2011