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".
The ratios a(n+1)/a(n) from n>=1 onward start as 2,3,2,2,3,2,2,3,2,3,2,...
Table of n, a(n) for n=0..12.
Sequence in context: A170935 A277173 A163264 * A180071 A034882 A175943
Adjacent sequences: A163892 A163893 A163894 * A163896 A163897 A163898
Antti Karttunen, Sep 19 2009