1,15
R. H. Hardin, Table of n, a(n) for n=1..19
Sequence in context: A088280 A011526 A061126 * A172717 A213601 A213646
Adjacent sequences: A172534 A172535 A172536 * A172538 A172539 A172540
nonn
R. H. Hardin Feb 06 2010
approved