OFFSET
1,1
LINKS
Nathaniel Johnston, Table of n, a(n) for n = 1..1000 (as of Sep 27 2011)
EXAMPLE
a(3)=20 because the third sequence not begining with a "1" is A000020.
CROSSREFS
KEYWORD
dumb,easy,nonn
AUTHOR
Leonardo Sznajder, Jun 05 2008
STATUS
approved