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Table of n, a(n) for n=1..72.
Cf. A191265, A191250.
Sequence in context: A077152 A067759 A256882 * A145204 A016051 A070790
Adjacent sequences: A191264 A191265 A191266 * A191268 A191269 A191270
Clark Kimberling, May 28 2011