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A139792
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First quadrisection of A139763 (1, 2, 3, 4, 11).
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2
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1, 11, 171, 2731, 43691, 699051, 11184811, 178956971, 2863311531, 45812984491, 733007751851, 11728124029611, 187649984473771, 3002399751580331, 48038396025285291, 768614336404564651, 12297829382473034411, 196765270119568550571, 3148244321913096809131
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..500
Index to sequences with linear recurrences with constant coefficients, signature (17,-16)
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FORMULA
| a(n)=16a(n-1)-5. Also a(n)=10*A131865(n)+1.
a(n)=(1+2*16^n)/3, with n>=0 - Paolo P. Lava (paoloplava(AT)gmail.com), Jun 19 2008
G.f. ( 1-6*x ) / ( (16*x-1)*(x-1) ). - R. J. Mathar, Feb 06 2011
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PROG
| (MAGMA) [(1+2*16^n)/3: n in [0..20]]; // Vincenzo Librandi, Aug 09 2011
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CROSSREFS
| Sequence in context: A167245 A205087 A064182 * A025758 A141955 A133243
Adjacent sequences: A139789 A139790 A139791 * A139793 A139794 A139795
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KEYWORD
| nonn,easy
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AUTHOR
| Paul Curtz (bpcrtz(AT)free.fr), May 21 2008
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