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Table of n, a(n) for n=1..40.
Eric Weisstein's World of Mathematics, Almost Integer
Floor(n*tanh(Pi)) = n-1 for 1<=n<=267, but floor(268*tanh(Pi)) = floor(269*tanh(Pi)) = 267, so 268 is the first member of the sequence.
Sequence in context: A278382 A062037 A244194 * A234878 A194774 A279184
Adjacent sequences: A096610 A096611 A096612 * A096614 A096615 A096616
Eric W. Weisstein, Jun 30 2004