1,28

R. H. Hardin, Table of n, a(n) for n=1..1000

Sequence in context: A161319 A161253 A161038 * A161305 A161280 A160984

Adjacent sequences: A161086 A161087 A161088 * A161090 A161091 A161092

nonn

R. H. Hardin Jun 02 2009

Definition edited to "primes or 1". - R. H. Hardin, Jun 22 2009

approved