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Search: id:A002089
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| 11, 44, 176, 704, 2816, 11264, 45056, 180224, 720896, 2883584, 11534336, 46137344, 184549376, 738197504, 2952790016, 11811160064, 47244640256, 188978561024, 755914244096, 3023656976384, 12094627905536
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Subsequence of A000069, the odious numbers. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 26 2007
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LINKS
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Index entries for sequences related to linear recurrences with constant coefficients
Tanya Khovanova, Recursive Sequences
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FORMULA
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a(n)=4*a(n-1), n>0 ; a(0)=11 . G.f.: 11/(1-4*x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 23 2008]
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MAPLE
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with(finance):seq(futurevalue(11, 3, n), n=0..20); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 25 2009]
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CROSSREFS
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Bisection of A005015. Half the first differences of A072261.
Sequence in context: A022816 A120537 A068596 this_sequence A042521 A041228 A022280
Adjacent sequences: A002086 A002087 A002088 this_sequence A002090 A002091 A002092
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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