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..100.
Sequence in context: A111376 A241664 A157226 * A187808 A164677 A001511
Adjacent sequences: A156246 A156247 A156248 * A156250 A156251 A156252
Benoit Cloitre, Feb 07 2009