Numbers n such that tau(n) (the number of divisors of n) is a square.
1, 6, 8, 10, 14, 15, 21, 22, 26, 27, 33, 34, 35, 36, 38, 39, 46, 51, 55, 57, 58, 62, 65, 69
1 seqfan posts
Mon Jun 28 21:17:42 CEST 2010 [seqfan] Automatic Invention of Integer Sequences (with the HR Program, named after Hardy and Ramanujan)