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..51.
Sequence in context: A125775 A191165 A058637 * A008319 A033311 A098504
Adjacent sequences: A026470 A026471 A026472 * A026474 A026475 A026476
More terms from Ralf Stephan, Sep 05 2004