1,4
R. H. Hardin, Table of n, a(n) for n=1..13
Sequence in context: A289640 A319977 A268505 * A159191 A013820 A294326
Adjacent sequences: A172731 A172732 A172733 * A172735 A172736 A172737
nonn
R. H. Hardin Feb 06 2010
approved