1,3
Table of n, a(n) for n=1..10.
Sequence in context: A221732 A123770 A003400 * A094059 A171202 A174845
Adjacent sequences: A059507 A059508 A059509 * A059511 A059512 A059513
easy,nonn
Floor van Lamoen (fvlamoen(AT)hotmail.com), Jan 21 2001
approved