Minimal common difference of maximal arithmetic progression starting at n such that each term k has tau(k)=tau(n)
1, 2, 5, 6, 2, 150, 19, 16, 12, 1536160080, 8, 9918821194590, 300, 188, 65
2 seqfan posts
Mon Oct 26 12:32:56 CET 2009 [seqfan] Arithmetic progressions of primes