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=1..54.
Sequence in context: A087326 A273791 A065984 * A174134 A032425 A194045
Adjacent sequences: A039566 A039567 A039568 * A039570 A039571 A039572