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=0..63.
Sequence in context: A261159 A145737 A108763 * A196847 A087455 A192040
Adjacent sequences: A061412 A061413 A061414 * A061416 A061417 A061418
Patrick De Geest, May 15 2001.