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Table of n, a(n) for n=0..26.
Sinh[ Log[ 1+Tanh[ x ] ] ]
Sequence in context: A229105 A223585 A202680 * A232839 A140299 A119007
Adjacent sequences: A009567 A009568 A009569 * A009571 A009572 A009573
R. H. Hardin
Extended with signs Mar 15 1997 by Olivier Gerard.