OFFSET
1,5
COMMENTS
Eric Angelini calls this "A seed and a jumping bean": The value of a(n) indicates over how many terms to the left one jumps, starting at index n, to reach the place which is to filled such that the two values sum up to n.
LINKS
E. Angelini, A seed and a jumping bean, Oct. 2011
E. Angelini, A seed and a jumping bean [Cached copy, with permission]
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, according to the original idea of Eric Angelini, Oct 11 2011
STATUS
approved