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..99.
Eric Weisstein's World of Mathematics, Hundred-Dollar, Hundred-Digit Challenge Problems
Sequence in context: A218708 A010550 A192106 * A155995 A229191 A131744
Adjacent sequences: A117229 A117230 A117231 * A117233 A117234 A117235
Eric W. Weisstein, Mar 05 2006