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Table of n, a(n) for n=1..69.
Cf. A118950, A011540, A011531.
Sequence in context: A213308 A067127 A119492 * A228019 A228020 A163282
Adjacent sequences: A118948 A118949 A118950 * A118952 A118953 A118954
Rick L. Shepherd, May 06 2006