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This sequence is strictly monotonically increasing.
Table of n, a(n) for n=1..60.
Cf. A000005, A090481, A175144.
Sequence in context: A186689 A186350 A189829 * A171508 A049068 A185602
Adjacent sequences: A175143 A175144 A175145 * A175147 A175148 A175149
Leroy Quet, Feb 24 2010
Extended by Ray Chandler, Mar 04 2010