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A009535 Expansion of sin(x)*cos(tan(x)). 1
1, -4, -24, -456, -11264, -289664, 3000960, 2697206272, 625547980800, 138214081974272, 32824743592198144, 8622090358801989632, 2517001357223737327616, 813249999853716681654272, 288227689418308842574053376, 110555226159597276214983917568 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
With[{nn=40}, Take[CoefficientList[Series[Sin[x]Cos[Tan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Jun 18 2013 *)
CROSSREFS
Sequence in context: A166947 A103624 A101952 * A139096 A111425 A013100
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
More terms from and prior Mathematica program replaced by Harvey P. Dale, Jun 18 2013
STATUS
approved

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Last modified February 29 09:21 EST 2024. Contains 370418 sequences. (Running on oeis4.)