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A139612 66n + 12. 3
12, 78, 144, 210, 276, 342, 408, 474, 540, 606, 672, 738, 804, 870, 936, 1002, 1068, 1134, 1200, 1266, 1332, 1398, 1464, 1530, 1596, 1662, 1728, 1794, 1860, 1926, 1992, 2058, 2124, 2190, 2256, 2322, 2388, 2454, 2520, 2586, 2652, 2718 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

Numbers of the 12nd column of positive numbers in the square array of nonnegative and polygonal numbers A139600. Also, numbers of the 12nd column in the square array A057145.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Index to sequences with linear recurrences with constant coefficients, signature (2,-1).

PROG

(MAGMA) [6*(11*n + 2): n in [0..60]]; // Vincenzo Librandi, Jul 23 2011

(PARI) a(n)=66*n+12 \\ Charles R Greathouse IV, Oct 05 2011

CROSSREFS

Sequence in context: A026974 A109711 A136540 * A162629 A008504 A008494

Adjacent sequences:  A139609 A139610 A139611 * A139613 A139614 A139615

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Apr 27 2008

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Last modified February 14 07:46 EST 2012. Contains 205597 sequences.