%I #8 Nov 19 2017 17:21:45
%S 1,2,660,1564,1610,9690,39102
%N Indices of primes in A022567.
%C No other terms below 250000.
%e 660 is in the sequence because A022567(660) = 50982304291263233250716951 is prime.
%Y Cf. A022567, A035359.
%K nonn,more
%O 1,2
%A _Vaclav Kotesovec_, Apr 14 2017