

A084187


First occurrence of exactly n 0's in the binary expansion of sqrt(2).


3



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
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OFFSET

1,1


COMMENTS

Next term after 76570753 is >200000000.  Ryan Propper, May 09 2006


LINKS

Table of n, a(n) for n=1..25.


EXAMPLE

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.


CROSSREFS

Cf. A084185, A084186.
Cf. A233836.
Sequence in context: A296661 A000181 A047146 * A267596 A119904 A271828
Adjacent sequences: A084184 A084185 A084186 * A084188 A084189 A084190


KEYWORD

nonn,more,hard


AUTHOR

Ralf Stephan, May 18 2003


EXTENSIONS

More terms from Ryan Propper, May 09 2006


STATUS

approved



