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Search: id:A084187
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| A084187 |
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First occurrence of exactly n 0's in the binary expansion of sqrt(2). |
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+0
3
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| 2, 15, 63, 58, 9, 1003, 524, 454, 1303, 5335, 22472, 8882, 37469, 32279, 220311, 92988, 698343, 24002, 574131, 3333660, 5940559, 4079882, 8356569, 115885798, 76570753
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Next term after 76570753 is >200000000. - Ryan Propper (rpropper(AT)stanford.edu), May 09 2006
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EXAMPLE
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The binary expansion of sqrt(2) is 1.0110101000001..(A004539) and at position 9, there are five 0's, framed by 1's, so a(5)=9.
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CROSSREFS
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Cf. A084185, A084186.
Sequence in context: A084169 A000181 A047146 this_sequence A119904 A117669 A117393
Adjacent sequences: A084184 A084185 A084186 this_sequence A084188 A084189 A084190
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KEYWORD
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nonn,more,hard
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AUTHOR
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Ralf Stephan (ralf(AT)ark.in-berlin.de), May 18 2003
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EXTENSIONS
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More terms from Ryan Propper (rpropper(AT)stanford.edu), May 09 2006
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