2,1

a(n) is always either 1 or the smallest prime factor of n.

a(8) = 1 because both A135060(7) and A135060(8) are 840

Cf. A135060.

Adjacent sequences: A136093 A136094 A136095 this_sequence A136097 A136098 A136099

Sequence in context: A073893 A099552 A076199 this_sequence A072591 A085308 A086286

more,nonn

J. Lowell (jhbubby(AT)mindspring.com), May 10 2008