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A176326 a(3n) is the sequence 7, 6, 5, 4, ...; a(3n+1) is the sequence 9, 11, 13, 15, ...; a(3n+2) is the sequence 11, 8, 5, ... 0
7, 9, 11, 6, 11, 8, 5, 13, 5, 4, 15, 2, 3, 17, -1, 2, 19, -4, 1, 21, -7, 0, 23, -10, -1, 25, -13, -2, 27, -16, -3, 29, -19, -4, 31, -22, -5, 33, -25, -6, 35, -28, -7, 37, -31, -8, 39, -34, -9, 41, -37, -10, 43, -40, -11, 45, -43, -12, 47, -46 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Array read by rows in which row n lists 8-n, 2*n+7 and 14-3*n. [From Omar E. Pol, Apr 25 2010]

LINKS

Table of n, a(n) for n=0..59.

Index entries for linear recurrences with constant coefficients, signature (0,0,2,0,0,-1).

FORMULA

G.f. ( 7+9*x+11*x^2-8*x^3-7*x^4-14*x^5 ) / ( (x-1)^2*(1+x+x^2)^2 ). - R. J. Mathar, May 04 2013

MATHEMATICA

LinearRecurrence[{0, 0, 2, 0, 0, -1}, {7, 9, 11, 6, 11, 8}, 60] (* Harvey P. Dale, Nov 03 2016 *)

CROSSREFS

Sequence in context: A117933 A112162 A058483 * A283056 A162308 A191883

Adjacent sequences:  A176323 A176324 A176325 * A176327 A176328 A176329

KEYWORD

sign,easy,less

AUTHOR

P. D. Vall (pdvall(AT)yahoo.com), Apr 15 2010

EXTENSIONS

Edited by Omar E. Pol and N. J. A. Sloane, Apr 24 2010

More terms from Omar E. Pol, Apr 25 2010

STATUS

approved

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Last modified January 23 07:07 EST 2020. Contains 331168 sequences. (Running on oeis4.)