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Table of n, a(n) for n=1..42.
Sequence in context: A216233 A157246 A186460 * A129210 A137521 A257781
Adjacent sequences: A171991 A171992 A171993 * A171995 A171996 A171997
Juri-Stepan Gerasimov, Jan 21 2010
Corrected, edited and extended by Editors of the OEIS, Mar 29 2010