1,7
R. H. Hardin, Table of n, a(n) for n=1..10
Sequence in context: A003852 A003845 A144134 * A276972 A280298 A321136
Adjacent sequences: A172574 A172575 A172576 * A172578 A172579 A172580
nonn
R. H. Hardin Feb 06 2010
approved