Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".
Table of n, a(n) for n=1..105.
Antidiagonal sums are in A006581.
Sequence in context: A000925 A258279 A258292 * A157237 A065676 A146973
Adjacent sequences: A003982 A003983 A003984 * A003986 A003987 A003988
More terms from Larry Reeves (larryr(AT)acm.org), Sep 21 2000