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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: A047146 A084187 A267596 * A271828 A117669 A183264
Adjacent sequences: A119901 A119902 A119903 * A119905 A119906 A119907
Klaus Brockhaus, May 28 2006