A171763 - OEIS

A171763

Odd numbers whose binary expansion begins 10.

5, 9, 11, 17, 19, 21, 23, 33, 35, 37, 39, 41, 43, 45, 47, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[3, 181, 2], Take[IntegerDigits[#, 2], 2]=={1, 0}&] (* Harvey P. Dale, Jun 09 2016 *)

CROSSREFS

Cf. A171757, A171758, A171764.

A subsequence of A004754.

Sequence in context: A314600 A023484 A102173 * A342092 A089255 A314601

Adjacent sequences: A171760 A171761 A171762 * A171764 A171765 A171766

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 12 2010

STATUS

approved