login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A130908 E.g.f.: exp(x+x^2/2!+x^3/3!)/(1-x) 0
1, 2, 6, 23, 106, 576, 3622, 26006, 210828, 1910096, 19162096, 211095732, 2534829376, 32962249568, 461527198056, 6923249156336, 110774157354832, 1883174989346016, 33897247428278368, 644048388555567536, 12880972761058252896, 270500465268345299072, 5951010522336442007776, 136873244273143429751328 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

FORMULA

a(n) ~ n! * exp(5/3). - Vaclav Kotesovec, Aug 04 2014

MATHEMATICA

With[{nn=20}, CoefficientList[Series[Exp[x+x^2/2!+x^3/3!]/(1-x), {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jun 01 2014 *)

PROG

(PARI) x='x+O('x^66); Vec(serlaplace(exp(x+x^2/2!+x^3/3!)/(1-x))) \\ Joerg Arndt, Jun 01 2014

CROSSREFS

Cf. A130905, A130906, A130907.

Sequence in context: A125273 A187761 A277176 * A200404 A000772 A200405

Adjacent sequences:  A130905 A130906 A130907 * A130909 A130910 A130911

KEYWORD

nonn

AUTHOR

Karol A. Penson, Jun 08 2007

EXTENSIONS

Incorrect initial term 1 removed by Harvey P. Dale, Jun 01 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 19 00:12 EST 2018. Contains 317332 sequences. (Running on oeis4.)