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A081565 Binomial transform of expansion of exp(3cosh(x)). 3
1, 1, 4, 10, 49, 181, 1039, 4915, 32134, 182206, 1330609, 8706655, 70012309, 515822581, 4517489344, 36835737130, 348313165249, 3103526872081, 31462900577419, 303344232041215, 3277823503679554, 33930282904263406 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Binomial transform of A081564.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

FORMULA

E.g.f.: exp(x) * exp(3*cosh(x))/e^3 = exp(3*cosh(x)+x-3).

MATHEMATICA

With[{nn = 30}, CoefficientList[Series[Exp[3 Cosh[x] + x - 3], {x, 0, nn}], x] Range[0, nn]!] (* Vincenzo Librandi, Aug 08 2013 *)

CROSSREFS

Cf. A081565.

Sequence in context: A099606 A149231 A173086 * A151611 A208236 A032495

Adjacent sequences:  A081562 A081563 A081564 * A081566 A081567 A081568

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Mar 22 2003

STATUS

approved

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Last modified March 20 20:14 EDT 2019. Contains 321352 sequences. (Running on oeis4.)