A171524 - OEIS

%I #2 Mar 30 2012 19:00:22

%S 2,3,4,5,6,7,9,10,11,12,13,14,15,16,17,19,20,21,22,23,24,25,26,27,28,

%T 29,30,31,33,34,35,36,37,38,39,40,41,42,43,44,46,47,48,49,50,51,52,53,

%U 54,55

%N a(n) = numbers m such that are not the product of k-th nonprime number and k for any k >= 1.

%C Complement of set {A(nonprime(n)*n)} = {A171523(n)} = {A(A018252(n)*A000027(n))}.

%K nonn

%O 1,1

%A _Jaroslav Krizek_, Dec 11 2009