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A017139 a(n) = (8*n + 6)^3. 1
216, 2744, 10648, 27000, 54872, 97336, 157464, 238328, 343000, 474552, 636056, 830584, 1061208, 1331000, 1643032, 2000376, 2406104, 2863288, 3375000, 3944312, 4574296, 5268024, 6028568, 6859000, 7762392, 8741816, 9800344, 10941048 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (4, -6, 4, -1).

FORMULA

G.f.: 8*(27 + 235*x + 121*x^2 + x^3)/(x-1)^4. a(n) = 8*A016839(n) - R. J. Mathar, Mar 22 2010

a(0)=216, a(1)=2744, a(2)=10648, a(3)=27000, a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4). - Harvey P. Dale, Dec 11 2012

MATHEMATICA

Table[(8*n+6)^3, {n, 0, 5!}] (* Vladimir Joseph Stephan Orlovsky, Mar 17 2010 *)

LinearRecurrence[{4, -6, 4, -1}, {216, 2744, 10648, 27000}, 30] (* Harvey P. Dale, Dec 11 2012 *)

PROG

(MAGMA) [(8*n+6)^3: n in [0..35]]; // Vincenzo Librandi, Jul 22 2011

CROSSREFS

Sequence in context: A223559 A017055 A299859 * A249005 A249470 A251359

Adjacent sequences:  A017136 A017137 A017138 * A017140 A017141 A017142

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Vladimir Joseph Stephan Orlovsky, Mar 17 2010

STATUS

approved

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Last modified August 19 18:33 EDT 2019. Contains 326133 sequences. (Running on oeis4.)