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A004743 Numbers n such that binary expansion does not contain 110. 2
0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 20, 21, 23, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 47, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 79, 80, 81, 82, 83, 84, 85, 87, 95, 127, 128, 129, 130, 131, 132, 133, 135, 136, 137, 138, 139 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

A 2-automatic sequence. - Charles R Greathouse IV, Mar 26 2013

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

PROG

(PARI) is(n)=n=binary(n); for(i=3, #n, if(!n[i]&&n[i-2]&&n[i-1], return(0))); 1 \\ Charles R Greathouse IV, Mar 26 2013

CROSSREFS

Sequence in context: A032853 A023748 A107686 * A114994 A137706 A039224

Adjacent sequences:  A004740 A004741 A004742 * A004744 A004745 A004746

KEYWORD

nonn,easy,changed

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 24 11:06 EDT 2013. Contains 225619 sequences.