Number of numbers m <= n such that floor(sqrt(m)) divides m.
1, 3, 6, 10, 16, 24, 33, 45, 60, 76, 96, 120, 145, 175, 210, 246, 288, 336, 385, 441
1 seqfan posts
Wed Jan 26 15:24:23 CET 2011 [seqfan] Experiment: period of a(n) mod p (after ditching rational expressions and linear recurrences)