OFFSET
1,13
COMMENTS
FORMULA
It appears that A000041(n) = Sum_{j=1..9} a(n+j), n >= 0.
PROG
(Sage) A206559 = lambda n: sum(list(p).count(9) for p in Partitions(n) if 1 not in p)
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Feb 09 2012
STATUS
approved