Smallest divisor of n >= sqrt(n).
1, 2, 3, 2, 5, 3, 7, 4, 3, 5, 11, 4, 13, 7, 5, 4, 17, 6, 19, 5, 7, 11, 23, 6, 5, 13, 9, 7, 29, 6
1 seqfan posts
Mon Jun 7 16:43:30 CEST 2010 [seqfan] Re: A060798 Difference between upper and lower central divisors of n is 1