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A016215

Expansion of 1 / ((1-x) * (1-3*x) * (1-10*x)).

1, 14, 153, 1570, 15821, 158574, 1586833, 15871610, 158725941, 1587288934, 15872977913, 158730044850, 1587301245661, 15873014848094, 158730155655393, 1587301578077290, 15873015845342981, 158730158647140054, 1587301587052531273, 15873015872268704930

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..19.

Index entries for linear recurrences with constant coefficients, signature (14,-43,30).

FORMULA

a(0)=1, a(1)=14, a(n)=13*a(n-1)-30*a(n-2)+1. - Vincenzo Librandi, Feb 10 2011

a(n) = (1/18)-(9/14)*(3)^n+(100/63)*(10)^n. Antonio Alberto Olivares, May 12 2012

MAPLE

a:= n-> add((10^(n+1-j)-3^(n+1-j))/7, j=0..n): seq(a(n), n=0..20); # Zerinvary Lajos, Jan 15 2007

MATHEMATICA

CoefficientList[Series[1/((1-x)(1-3x)(1-10x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{14, -43, 30}, {1, 14, 153}, 30] (* Harvey P. Dale, Aug 17 2017 *)

CROSSREFS

Sequence in context: A016163 A153884 A154239 * A329711 A290675 A097227

Adjacent sequences: A016212 A016213 A016214 * A016216 A016217 A016218

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

URL: https://oeis.org/A016215

⇱ A016215 - OEIS