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Search: id:A119413
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| 4, 20, 36, 52, 68, 84, 100, 116, 132, 148, 164, 180, 196, 212, 228, 244, 260, 276, 292, 308, 324, 340, 356, 372, 388, 404, 420, 436, 452, 468, 484, 500, 516, 532, 548, 564, 580, 596, 612, 628, 644, 660, 676, 692, 708, 724, 740, 756, 772
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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General form: (q*n+1)*q q=2=A016825, q=3=A017197, q=4=A119413, ... [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Feb 16 2009]
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LINKS
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Tanya Khovanova, Recursive Sequences
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FORMULA
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O.g.f.: 4x(1+3x)/(1-x)^2. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 08 2008]
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MATHEMATICA
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q=4; lst={}; Do[AppendTo[lst, (q*n+1)*q], {n, 0, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Feb 16 2009]
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PROGRAM
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(PARI) for(x=1, 100, print1(16*x-12, ", "))
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CROSSREFS
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Cf. A085805 A044446.
Sequence in context: A043880 A030002 A085805 this_sequence A044446 A072977 A163365
Adjacent sequences: A119410 A119411 A119412 this_sequence A119414 A119415 A119416
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KEYWORD
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nonn,less
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AUTHOR
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Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Jul 26 2006
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