A106144 - OEIS

%I #4 Nov 28 2015 08:05:30

%S 4,6,1,2,6,7,5,6,1,2,1,2,3,6,7,6,1,3,7,1,2,6,1,5,2,5,2,5,6,7,3,5,6,7,

%T 2,7,3,6,7,1,2,3,1,5,6,5,6,7,1,2,3,6,7,1,6,1,1,2,7,1,3,2,1,2,3,5,6,1,

%U 5,6,7,1,2,3,5,2,3,5,7,1,5,6,3,6,1,3,2,6,7,1,3,7,2,3,5,6,7,1,5,2,7,1,3,6,7

%N Semiprimes (mod 8).

%t Mod[#,8]&/@Select[Range[400],PrimeOmega[#]==2&] (* _Harvey P. Dale_, Nov 28 2015 *)

%Y Cf. A001358.

%K nonn

%O 1,1

%A _Shyam Sunder Gupta_, May 07 2005