OFFSET
1,1
LINKS
Kerry Mitchell, Table of n, a(n) for n = 1..2782
EXAMPLE
a(1) = 2 because A121559 begins 1, 0, 0, 1, with 2 zeros between 1's.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Kerry Mitchell, Aug 07 2006
STATUS
approved