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=1..24.
N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
Cf. A117800, A118878, A119903.
Sequence in context: A000181 A047146 A084187 * A117669 A183264 A176972
Adjacent sequences: A119901 A119902 A119903 * A119905 A119906 A119907
Klaus Brockhaus, May 28 2006