1,1

Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime

For more terms see A002254.

Sequence in context: A092445 A068840 A082424 this_sequence A104118 A020452 A003356

Adjacent sequences: A050523 A050524 A050525 this_sequence A050527 A050528 A050529

nonn

njas, Dec 29 1999