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A024244
Expansion of tan(sin(x)*x)/2.
0
0, 1, -2, 123, -3364, 307445, -27693606, 4225124911, -763609828808, 186062503278825, -54699231827563210, 19846874921743244771, -8537442340155261028332, 4342042121637684282920413
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OFFSET
0,3
LINKS
Table of n, a(n) for n=0..13.
MATHEMATICA
Tan[ Sin[ x ]*x ]/2 (* Even Part *)
CROSSREFS
Cf.
A009673
.
Sequence in context:
A249503
A249504
A230586
*
A088055
A065705
A012870
Adjacent sequences:
A024241
A024242
A024243
*
A024245
A024246
A024247
KEYWORD
sign
AUTHOR
R. H. Hardin
EXTENSIONS
Extended with signs Mar 1997
STATUS
approved
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Last modified August 12 09:11 EDT 2024. Contains 375085 sequences. (Running on oeis4.)