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A284820 Positions of 0 in the {1100->0}-transform of A010060; complement of A284847. 2
1, 4, 6, 7, 8, 10, 13, 15, 16, 18, 19, 22, 24, 25, 26, 28, 29, 32, 34, 35, 37, 40, 42, 43, 44, 46, 49, 51, 52, 54, 55, 58, 60, 61, 63, 66, 68, 69, 70, 72, 73, 76, 78, 79, 80, 82, 85, 87, 88, 90, 91, 94, 96, 97, 98, 100, 101, 104, 106, 107, 109, 112, 114, 115 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) - a(n-1) is in {1,2,3} for n>=2.  Conjecture: a(n)/n -> 9/5.

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

EXAMPLE

The {1100->0}-transform of A010060 begins with the word 011010001011010010011010001..., in which 0 is in positions 1,4,6,7,8,10,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 9] (* A010060 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"1100" -> "0"}]

st = ToCharacterCode[w1] - 48

Flatten[Position[st, 0]]  (* A284820 *)

Flatten[Position[st, 1]]  (* A284847 *)

CROSSREFS

Cf. A010060, A284792, A284847.

Sequence in context: A105432 A324704 A203168 * A284623 A139490 A030375

Adjacent sequences:  A284817 A284818 A284819 * A284821 A284822 A284823

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 10 2017

EXTENSIONS

Definition corrected by Georg Fischer, Sep 24 2021

STATUS

approved

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Last modified October 25 14:34 EDT 2021. Contains 348255 sequences. (Running on oeis4.)