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A020707
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Pisot sequences E(4,8), L(4,8), P(4,8), T(4,8).
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6
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4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Subsequence of A051916. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 20 2010]
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..238
Index entries for sequences related to linear recurrences with constant coefficients
Tanya Khovanova, Recursive Sequences
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FORMULA
| a(n) = 2^(n+2). a(n) = 2*a(n-1).
G.f.: 4/(1-2*x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 23 2008]
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MATHEMATICA
| 2^(Range[0, 50] + 2) (*The same as:*) 2^Range[2, 52] (* From Vladimir Joseph Stephan Orlovsky, June 09 2011 *)
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PROG
| (MAGMA) [2^(n+2): n in [0..40]]; // Vincenzo Librandi, Apr 28 2011
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CROSSREFS
| Subsequence of A000079. See A008776 for definitions of Pisot sequences.
Sequence in context: A046055 A186949 * A151821 A147639 A049934 A089890
Adjacent sequences: A020704 A020705 A020706 * A020708 A020709 A020710
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KEYWORD
| nonn
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AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net)
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