1,1
Subset of A040136.
Also primes p such that p divides 5^(p-1)/2 + 3^(p-1)/2. - Cino Hilliard (hillcino368(AT)gmail.com), Sep 06 2004
Sequence in context: A054986 A071621 A160951 this_sequence A113017 A007627 A121877
Adjacent sequences: A038885 A038886 A038887 this_sequence A038889 A038890 A038891
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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