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Table of n, a(n) for n=1..63.
Cf. A187224, A187899.
Sequence in context: A139444 A166569 A024608 * A183992 A187410 A035510
Adjacent sequences: A187897 A187898 A187899 * A187901 A187902 A187903
Clark Kimberling, Mar 15 2011