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A134009
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a(1) = 1; a(n+1)= round (sqrt(3)*a(n)).
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0
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1, 2, 3, 5, 9, 16, 28, 48, 83, 144, 249, 431, 747, 1294, 2241, 3882, 6724, 11646, 20171, 34937, 60513, 104812, 181540, 314437, 544621, 943311, 1633863, 2829934, 4901589, 8489801, 14704767, 25469404, 44114302, 76408212, 132342905, 229224635, 397028714
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| a(6) = 16 because a(5) is 9 and round(sqrt(3)*9) = 16
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MATHEMATICA
| With[{c=Sqrt[3]}, NestList[Floor[c #+1/2]&, 1, 45]] (* From Harvey P. Dale, May 03 2011 *)
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CROSSREFS
| Sequence in context: A119968 A017914 A137402 * A018160 A079960 A005314
Adjacent sequences: A134006 A134007 A134008 * A134010 A134011 A134012
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KEYWORD
| easy,nonn
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AUTHOR
| Ben Thurston (benthurston27(AT)yahoo.com), Jan 09 2008
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EXTENSIONS
| More terms from Harvey P. Dale, May 03 2011.
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