A009447 - OEIS

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A009447

Expansion of sin(cosh(x)*x).

5

1, 2, -24, -624, -7424, 242560, 23499776, 1002251264, -2151563264, -5583112077312, -666018502836224, -39230927775531008, 2301688982196453376, 1098354240121833783296, 184678513097428042776576

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..14.

MATHEMATICA

Sin[ Cosh[ x ]*x ] (* Odd Part *)

CROSSREFS

Sequence in context: A089835 A210909 A009251 * A193442 A123741 A302579

Adjacent sequences: A009444 A009445 A009446 * A009448 A009449 A009450

KEYWORD

sign

AUTHOR

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

STATUS

approved