1,2
R. H. Hardin, Table of n, a(n) for n=1..13
Sequence in context: A172879 A227766 A010331 * A088851 A244168 A002289
Adjacent sequences: A172687 A172688 A172689 * A172691 A172692 A172693
nonn
R. H. Hardin Feb 06 2010
approved