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A170767 G.f.: (1+x)/(1-47*x). 50
1, 48, 2256, 106032, 4983504, 234224688, 11008560336, 517402335792, 24317909782224, 1142941759764528, 53718262708932816, 2524758347319842352, 118663642324032590544, 5577191189229531755568, 262127985893787992511696, 12320015337008035648049712 (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 (47).

FORMULA

a(n)= Sum_{k, 0<=k<=n} A097805(n,k)*(-1)^(n-k)*48^k. [From Philippe Deléham, Dec 04 2009]

a(0) = 1; for n>0, a(n) = 48*47^(n-1). [From Vincenzo Librandi, Dec 05 2009]

MATHEMATICA

CoefficientList[Series[(1 + x)/(1 - 47*x), {x, 0, 30}], x] (* Vincenzo Librandi, Dec 09 2012 *)

CROSSREFS

Sequence in context: A170681 A170729 A063822 * A218750 A263504 A158783

Adjacent sequences:  A170764 A170765 A170766 * A170768 A170769 A170770

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 04 2009

STATUS

approved

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Last modified March 20 23:22 EDT 2019. Contains 321354 sequences. (Running on oeis4.)