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1,2

Table of n, a(n) for n=1..72.

Cf. A068935, A068936, A054411, A068938.

Sequence in context: A118065 A020661 A284837 * A285316 A182768 A207481

Adjacent sequences: A068934 A068935 A068936 * A068938 A068939 A068940

nonn

Reinhard Zumkeller, Mar 08 2002

More terms from David Wasserman, Jun 17 2002

approved