A024227 - OEIS

A024227

Expansion of sinh(x)*sin(sin(x))/2.

0, 1, -2, 19, -228, 3077, -65830, 1758167, -53368136, 1951491465, -85111134154, 4176412349723, -225382900988204, 13340341706761357, -843824556920205294, 53569650920259775455, -2964970152744457750672, 54890174653048507285777

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

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

MATHEMATICA

Sinh[ x ]*Sin[ Sin[ x ] ]/2 (* Even Part *)

CROSSREFS

Cf. A009626.

Sequence in context: A091852 A210986 A232525 * A106945 A211886 A125632

Adjacent sequences: A024224 A024225 A024226 * A024228 A024229 A024230

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 1997

STATUS

approved