1,2
Table of n, a(n) for n=1..7.
Cf. A000043.
Sequence in context: A089747 A274170 A173144 * A005250 A162762 A156097
Adjacent sequences: A049012 A049013 A049014 * A049016 A049017 A049018
nonn,less,more
G. L. Honaker, Jr.
approved