[seqfan] Re: finite a(n) for q=0 and infinite a(n) for q>0?

юрий герасимов 2stepan at rambler.ru
Tue Oct 23 19:37:35 CEST 2018

Dear Allan and Maximilian, Thank you. I agree with your reasoning. Sequence a(n)
for q=0 is A002110(n). Correction of a(n) for q>0: a(n) is the smallest k such
that number of some divisors m of k is equal to excatly n where m = n <
A000005(k) and m-q, m+q are both prime. JSG.

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