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6, 21, 36, 51, 66, 81, 96, 111, 126, 141, 156, 171, 186, 201, 216, 231, 246, 261, 276, 291, 306, 321, 336, 351, 366, 381, 396, 411, 426, 441, 456, 471, 486, 501, 516, 531, 546, 561, 576, 591, 606, 621, 636, 651, 666, 681, 696, 711, 726, 741, 756, 771, 786
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Numbers of the 6th column of positive numbers in the square array of nonnegative and polygonal numbers A139600. Also, numbers of the 6th column in the square array A057145.
6th transversal numbers (or 6-transversal numbers): (A000217(6)-6)*n + 6.
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..5000
Index to sequences with linear recurrences with constant coefficients, signature (2,-1).
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MATHEMATICA
| Range[6, 1000, 15] (* From Vladimir Joseph Stephan Orlovsky (4vladimir(AT)gmail.com), May 31 2011 *)
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PROG
| (PARI) a(n)=15*n+6 \\ Charles R Greathouse IV, Oct 05 2011
(MAGMA) [15*n+6 : n in [0..60]]; // Vincenzo Librandi, Oct 06 2011
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CROSSREFS
| Cf. A144562, A153238, A067076.
Sequence in context: A063126 A115702 A003340 * A047717 A089982 A151943
Adjacent sequences: A139603 A139604 A139605 * A139607 A139608 A139609
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KEYWORD
| easy,nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Apr 27 2008
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