1,1
This sequence is subset of A007878 for prime n.
Conjecture: All numbers in this sequence are primes.
Cf. A007878, A138787.
Sequence in context: A042161 A176142 A101151 * A030244 A004150 A062642
Adjacent sequences: A138785 A138786 A138787 * A138789 A138790 A138791
nonn
Artur Jasinski (grafix(AT)csl.pl), Mar 30 2008