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A167393(a(n)) = 0.
Table of n, a(n) for n=1..70.
Sequence in context: A191883 A108815 A161992 * A004169 A066669 A059808
Adjacent sequences: A167374 A167375 A167376 * A167378 A167379 A167380
Reinhard Zumkeller, Nov 03 2009