0,1
am+1, bm+1, cm+1 are primes and am | (N-1), bm | (N-1), cm |(N-1)
Harvey Dubner (harvey(AT)dubner.com), personal communication, Jun 27, 2001.
Sequence in context: A113171 A014362 A143042 * A204538 A204534 A171394
Adjacent sequences: A064258 A064259 A064260 * A064262 A064263 A064264
nonn
N. J. A. Sloane (njas(AT)research.att.com), Sep 23 2001