1,6

if n is an odd prime a(n)=1.

Table of n, a(n) for n=1..86.

Sequence in context: A281553 A064434 A328988 * A095732 A001644 A139123

Adjacent sequences: A086398 A086399 A086400 * A086402 A086403 A086404

nonn

Benoit Cloitre, Sep 06 2003

approved