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A161007
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a(n+1) = 2*a(n) + 16*a(n-1), a(0)=0, a(1)=1.
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0
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0, 1, 2, 20, 72, 464, 2080, 11584, 56448, 298240, 1499648, 7771136, 39536640, 203411456, 1039409152, 5333401600, 27297349632, 139929124864, 716615843840, 3672097685504, 18810048872448, 96373660712960, 493708103385088, 2529394778177536, 12958119210516480
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| a(n+1)/a(n) = 1 + Sqrt(17) for large values on n.
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FORMULA
| a(n) = ((1+sqrt(17))^n - (1-sqrt(17))^n)/(2*sqrt(17)).
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MATHEMATICA
| LinearRecurrence[{2, 16}, {0, 1}, 50] (* T. D. Noe, Nov 07 2011 *)
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CROSSREFS
| Sequence in context: A183907 A003283 A135188 * A098077 A063663 A071253
Adjacent sequences: A161004 A161005 A161006 * A161008 A161009 A161010
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KEYWORD
| nonn
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AUTHOR
| Sture Sjoestedt (sture.sjostedt(AT)spray.se), Jun 02 2009
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