Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.
Table of n, a(n) for n=0..20.
Tan[ x ]*Cosh[ Log[ 1+x ] ]
Sequence in context: A064371 A009414 A009426 * A009427 A009754 A096314
Adjacent sequences: A009728 A009729 A009730 * A009732 A009733 A009734
R. H. Hardin
Extended with signs Mar 15 1997 by Olivier Gérard.