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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 Vincenzo Librandi, Table of n, a(n) for n = 0..100 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 Adjacent sequences: A009532 A009533 A009534 * A009536 A009537 A009538 KEYWORD sign AUTHOR R. H. Hardin 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.)