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Theorem: 3^(n-1) > n^n/n! for n >= 3.
D. S. Mitrinovic, Analytic Inequalities, Springer-Verlag, 1970; p. 193, 3.1.21.
Table of n, a(n) for n=1..28.
Sequence in context: A134968 A238419 A223944 * A212520 A115108 A127393
Adjacent sequences: A127631 A127632 A127633 * A127635 A127636 A127637
N. J. A. Sloane, Apr 03 2007