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Table of n, a(n) for n=0..20.
Sequence in context: A138706 A027762 A002445 * A130512 A127662 A003062
Adjacent sequences: A151708 A151709 A151710 * A151712 A151713 A151714
N. J. A. Sloane, Jun 07 2009
Terms a(7) onwards from T. D. Noe, Jun 07 2009