A004779 Binary expansion contains 3 adjacent 0's.

8, 16, 17, 24, 32, 33, 34, 35, 40, 48, 49, 56, 64, 65, 66, 67, 68, 69, 70, 71, 72, 80, 81, 88, 96, 97, 98, 99, 104, 112, 113, 120, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 152, 160, 161, 162, 163, 168

Offset

0,1

Links

Daniel Starodubtsev, Table of n, a(n) for n = 0..10000

Index entries for 2-automatic sequences.

Formula

a(n) ~ n. - Charles R Greathouse IV, Oct 23 2015

Prog

(PARI) is(n)=while(n>7, if(bitand(n, 7)==0, return(1)); n>>=1); 0 \\ Charles R Greathouse IV, Feb 11 2017

Crossrefs

Complement of A003796.

Cf. A004753, A004781, A136037.

Sequence in context: A297264 A296708 A297141 * A247061 A180860 A356450

Adjacent sequences: A004776 A004777 A004778 * A004780 A004781 A004782

Keyword

nonn,easy,base

Author

N. J. A. Sloane

Status

approved