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A004744 Numbers n such that binary expansion does not contain 011. 2
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 36, 37, 40, 41, 42, 48, 49, 50, 52, 53, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 68, 69, 72, 73, 74, 80, 81, 82, 84, 85, 96, 97, 98, 100, 101, 104, 105 (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-1]&&!n[i-2], return(0))); 1 \\ Charles R Greathouse IV, Mar 26 2013

CROSSREFS

Sequence in context: A102823 A179308 A004775 * A171987 A072226 A074402

Adjacent sequences:  A004741 A004742 A004743 * A004745 A004746 A004747

KEYWORD

nonn,easy,changed

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 22 06:45 EDT 2013. Contains 225511 sequences.