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A170765 G.f.: (1+x)/(1-45*x). 50
1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558593750, 1566328930136718750, 70484801856152343750, 3171816083526855468750, 142731723758708496093750, 6422927569141882324218750 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..600

Index entries for linear recurrences with constant coefficients, signature (45).

FORMULA

a(n)= Sum_{k, 0<=k<=n} A097805(n,k)*(-1)^(n-k)*46^k. [From Philippe Deléham, Dec 04 2009]

a(0) = 1; for n>0, a(n) = 46*45^(n-1). [From Vincenzo Librandi, Dec 05 2009]

MATHEMATICA

CoefficientList[Series[(1+x)/(1-45x), {x, 0, 15}], x]  (* Harvey P. Dale, Mar 26 2011 *)

PROG

(PARI) a(n)=46*45^n\45 \\ Charles R Greathouse IV, Jun 16 2011

CROSSREFS

Sequence in context: A170631 A170679 A170727 * A218748 A158752 A223738

Adjacent sequences:  A170762 A170763 A170764 * A170766 A170767 A170768

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Dec 04 2009

STATUS

approved

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Last modified April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)