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A031444 Numbers whose base-2 representation has one more 0 than 1's. 9
4, 17, 18, 20, 24, 67, 69, 70, 73, 74, 76, 81, 82, 84, 88, 97, 98, 100, 104, 112, 263, 267, 269, 270, 275, 277, 278, 281, 282, 284, 291, 293, 294, 297, 298, 300, 305, 306, 308, 312, 323, 325, 326, 329, 330, 332, 337, 338, 340, 344 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

If m is a term, then also 4*m+1; A037861(a(n)) = 1. - Reinhard Zumkeller, Mar 31 2015

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Index entries for sequences related to binary expansion of n

PROG

(Haskell)

a031444 n = a031444_list !! (n-1)

a031444_list = filter ((== 1) . a037861) [1..]

-- Reinhard Zumkeller, Mar 31 2015

CROSSREFS

Cf. AA007088, 023416, A000120, A031448, A095072 (subsequence), subsequence of A089648.

Sequence in context: A070712 A195884 A138268 * A031033 A128981 A212748

Adjacent sequences:  A031441 A031442 A031443 * A031445 A031446 A031447

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 29 04:22 EST 2021. Contains 349416 sequences. (Running on oeis4.)