Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Table of n, a(n) for n=0..60.
Sequence in context: A029103 A175732 A168260 * A244460 A160419 A152659
Adjacent sequences: A008734 A008735 A008736 * A008738 A008739 A008740
N. J. A. Sloane.