%I #6 Oct 31 2015 15:02:20
%S 1,1,1,1,1,17,25,37,265,5,93,2395,1443,3935,2757,5865
%N Values of k in A263539.
%o (PARI) terms=12; p=1; for(n=1, terms, q=p+2; while(!ispseudoprime(q), q+=2*p); print1((q-2)/p, ", "); p*=q)
%Y Cf. A263539, A258081.
%K nonn,hard,more
%O 1,6
%A _Jeppe Stig Nielsen_, Oct 20 2015