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A004715
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Positions of ones in binary expansion of arctan(1/2)/Pi.
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2
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3, 6, 8, 9, 10, 13, 21, 23, 27, 28, 29, 31, 32, 35, 36, 37, 39, 40, 41, 42, 43, 46, 47, 52, 57, 58, 61, 62, 65, 67, 69, 70, 72, 76, 80, 81, 82, 83, 85, 86, 88, 89, 91, 92, 94, 96, 97, 98, 102, 103, 105, 107, 111, 112
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| J. M. Borwein and R. Girgensohn, Addition theorems and binary expansions, Canad. J. Math., 47 (1995), 262-273.
S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 430-433.
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
S. R. Finch, Plouffe's Constant
S. Plouffe, The Computation of Certain Numbers Using a Ruler and Compass, J. Integer Seqs. Vol. 1 (1998), #98.1.3.
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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CROSSREFS
| Cf. A028999.
Sequence in context: A137386 A153307 A201817 * A190234 A036558 A005870
Adjacent sequences: A004712 A004713 A004714 * A004716 A004717 A004718
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KEYWORD
| nonn,base
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AUTHOR
| Simon Plouffe (simon.plouffe(AT)gmail.com)
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