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Values of k in A263539.
1

%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