

A084186


First occurrence of exactly n 1's in the binary expansion of sqrt(2).


4



1, 3, 40, 17, 74, 265, 31, 336, 11937, 1403, 8894, 3524, 33223, 126903, 3067, 109312, 390536, 553171, 280266, 962560
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


LINKS

Table of n, a(n) for n=1..20.


EXAMPLE

The binary expansion of sqrt(2) is 1.0110101000001..(A004539) and at position 17, there are four 1's, framed by 0's, so a(4)=17.


CROSSREFS

Cf. A084185, A084187.
Cf. A233836.
Sequence in context: A319955 A317484 A196159 * A037104 A100306 A101014
Adjacent sequences: A084183 A084184 A084185 * A084187 A084188 A084189


KEYWORD

base,nonn,more,hard


AUTHOR

Ralf Stephan, May 18 2003


STATUS

approved



