A009346 Expansion of log(1+sinh(sin(x))).

0, 1, -1, 2, -6, 16, -72, 440, -2800, 20224, -169984, 1582976, -16076544, 178612864, -2155087872, 27969867008, -388732745728, 5765737517056, -90872771018752, 1516228355846144, -26703924688453632, 495092243779256320

Offset

0,4

Links

Table of n, a(n) for n=0..21.

Mathematica

Log[ 1+Sinh[ Sin[ x ] ] ]

Crossrefs

Sequence in context: A009681 A009186 A009328 * A009367 A114249 A147910

Adjacent sequences: A009343 A009344 A009345 * A009347 A009348 A009349

Keyword

sign,easy

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved