Definition:Nu Function/Sequence

Definition

The sequence of values of $\nu$ function: $\map \nu n$ for $n = 1, 2, 3, \ldots$ begins:

$1, 1, 1, 2, 1, 2, 1, 5, 2, 2, 1, 5, 1, 2, 1, 14, 1, 5, 1, 5, 2, 2, 1, 15, 2, 2, 5, 4, 1, 4, 1, 51, 1, 2, 1, 14, 1, 2, 2, 14, \ldots$

This sequence is A000001 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).