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".
A112248(a(n)) = 1; subsequence of A112250.
Table of n, a(n) for n=1..57.
Sequence in context: A060873 A186542 A196175 * A089061 A093115 A020936
Adjacent sequences: A112248 A112249 A112250 * A112252 A112253 A112254
Reinhard Zumkeller, Aug 30 2005