The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #6 Mar 02 2020 00:52:06
%S 0,0,0,0,2,6,8,22,87,163,198,257
%N a(n) = A153800(n) - A000040(n).
%Y Cf. A000040, A000043, A000668, A000225, A000396, A007691, A153800, A153801, A153803.
%K nonn,more
%O 1,5
%A _Omar E. Pol_, Jan 13 2009
%E a(11)-a(12) from _Jinyuan Wang_, Mar 01 2020