%I
%S 1,4,6,10,12,14,16,18,20,21,22,24,25,26,28,30,34,36,38,39,40,42,44,45,
%T 46,48,50,51,52,54,55,56,57,58,60,62,64,66,68,70,72,74,75,76,78,80,81,
%U 82,84,85,86,88,90,91,92,93,94,96,99,100,102,104,105,106,108,110,111,112,114,115
%N Positions n such that A163163(n) is not prime.
%e a(1)=1 because A163163(1)=1 is not prime. a(2)=4 because A163163(4)=6 is not prime.
%Y Cf. A000005, A000203, A007503, A163163.
%K nonn,easy
%O 1,2
%A _JuriStepan Gerasimov_, Jul 22 2009
%E 33 removed by _R. J. Mathar_, Jul 25 2009
