%I #12 Mar 08 2016 11:29:19
%S 2,3,4,5,6,9,12,14,15,16,18,19,20,27,30,31,33,38,39,42,43,44,47,54,55,
%T 56,58,59,62,63,65,67,68,69,74,79,83,84,86,89,91,93,94,99,100,102,107,
%U 108,110,122,123,129,133,134,135,139,143,147,153,154,155,156,162,167
%N A088878 indexed by A000040.
%H Michael De Vlieger, <a href="/A091179/b091179.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n)=k such that A000040(k) = A088878(n).
%p select(n > isprime(3*ithprime(n)2), [$1..1000]); # _Robert Israel_, Mar 04 2016
%t PrimePi@ Select[Prime@ Range@ 167, PrimeQ[3 #  2] &] (* _Michael De Vlieger_, Mar 04 2016 *)
%Y Cf. A088878, A091180, A091181.
%K easy,nonn
%O 1,1
%A _Ray Chandler_, Dec 27 2003
%E Offset corrected by _Michael De Vlieger_, Mar 04 2016
