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Table of n, a(n) for n=1..50.
Cf. A001358, A046368.
Sequence in context: A162730 A180074 A093772 * A100660 A088709 A225706
Adjacent sequences: A046397 A046398 A046399 * A046401 A046402 A046403
Patrick De Geest, Jun 15 1998.