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A119536 3*n^3 + 3*n. 0
0, 6, 30, 90, 204, 390, 666, 1050, 1560, 2214, 3030, 4026, 5220, 6630, 8274, 10170, 12336, 14790, 17550, 20634, 24060, 27846, 32010, 36570, 41544, 46950, 52806, 59130, 65940, 73254, 81090, 89466, 98400, 107910, 118014, 128730, 140076, 152070 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..37.

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

FORMULA

a(n) = 3*A034262(n) = 6*A006003(n). - J. M. Bergot, Apr 16 2012

a(0)=0, a(1)=6, a(2)=30, a(3)=90, a(n)=4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). - Harvey P. Dale, Mar 19 2013

MAPLE

[seq (3*n^3+3*n, n=0..60)];

MATHEMATICA

Table[3n^3+3n, {n, 0, 40}] (* or *) LinearRecurrence[{4, -6, 4, -1}, {0, 6, 30, 90}, 40] (* Harvey P. Dale, Mar 19 2013 *)

CROSSREFS

Sequence in context: A217260 A009775 A297570 * A107394 A033487 A061138

Adjacent sequences:  A119533 A119534 A119535 * A119537 A119538 A119539

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, May 28 2006

STATUS

approved

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Last modified July 21 05:26 EDT 2019. Contains 325190 sequences. (Running on oeis4.)