The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A147592 Expansion of 1/(1 + x - x^2 - 3 x^3 - x^4 + x^5 + x^6). 0
 1, -1, 2, 0, 0, 4, -2, 5, 3, 0, 12, 0, 12, 16, 5, 35, 18, 36, 64, 40, 110, 105, 135, 240, 216, 384, 472, 560, 905, 999, 1458, 1960, 2368, 3500, 4302, 5805, 7947, 9936, 13860, 17920, 23588, 32096, 41229, 55755, 73570, 96460, 129920, 169680, 226206, 300369 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Index entries for linear recurrences with constant coefficients, signature (-1,1,3,1,-1,-1). FORMULA G.f.: 1/((x^3-x-1)*(x^3+x^2-1)). [Colin Barker, Nov 04 2012] MATHEMATICA f[x_] = x^3 - x - 1; g[x] = ExpandAll[ -f[x]*x^3*f[1/x]]; a = Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}] LinearRecurrence[{-1, 1, 3, 1, -1, -1}, {1, -1, 2, 0, 0, 4}, 60] (* Harvey P. Dale, Sep 23 2020 *) CROSSREFS Sequence in context: A212137 A346462 A230295 * A108885 A341654 A072740 Adjacent sequences:  A147589 A147590 A147591 * A147593 A147594 A147595 KEYWORD sign,easy AUTHOR Roger L. Bagula, Nov 08 2008 EXTENSIONS Edited by Joerg Arndt and Colin Barker, Nov 04 2012 STATUS approved

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

Last modified August 10 04:27 EDT 2022. Contains 356029 sequences. (Running on oeis4.)