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A024288
Expansion of log(1+tanh(x)*sinh(x))/2.
0
0, 1, -8, 211, -11108, 985501, -132845558, 25350487891, -6508214949608, 2163722040149881, -904419413432969258, 464250155924655691471, -287099441049791660680508, 210529197284459655378072661, -180624991973581098090900739358, 179251232453786124708955804893451
OFFSET
0,3
MATHEMATICA
Log[ 1+Tanh[ x ]*Sinh[ x ] ]/2 (* Even Part *)
CROSSREFS
Cf. A009397.
Sequence in context: A197596 A197980 A197767 * A081794 A221042 A358211
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs Mar 1997
STATUS
approved