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A009169 Expansion of cosh(tanh(log(1+x))). 0
1, 0, 1, -3, 4, 20, -224, 1344, -5144, -4320, 356896, -4755520, 42368536, -207434448, -1593929336, 61487349000, -997231605824, 9976381236224, -16539522000704, -1929601048449600, 51992648244966016, -800205465246136320 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
LINKS
MATHEMATICA
Cosh[ Tanh[ Log[ 1+x ] ] ]
CROSSREFS
Sequence in context: A326424 A151357 A250105 * A265710 A322673 A306650
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved

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Last modified June 17 20:03 EDT 2024. Contains 373464 sequences. (Running on oeis4.)