Highly composite numbers, definition (1): where d(n), the number of divisors of n (A000005), increases to a record.
1, 2, 4, 6, 12, 24, 36, 48, 60, 120, 180, 240, 360, 720, 840, 1260, 1680, 2520, 5040
2 seqfan posts
Sat Jun 20 21:40:19 CEST 2009 [seqfan] A subsequence of highly composite numbers A002182 ?