Thank you, Max. If that is the smallest example for 62597 then it is clearly beyond the scope of my b-file. On Nov 29, 2013, at 10:33 AM, Max Alekseyev <maxale at gmail.com> wrote: > As of prime 62597, it is in A066364 since it divides the following > element of A014950: > 12933400720959 = 3^4 * 163 * 15649 * 62597