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A285092 Positions of 1 in A284848; complement of A285091. 3
2, 3, 5, 8, 9, 11, 12, 14, 17, 19, 20, 21, 23, 26, 27, 29, 30, 31, 33, 36, 38, 39, 41, 44, 45, 47, 48, 50, 53, 55, 56, 57, 59, 62, 64, 65, 67, 70, 71, 73, 74, 75, 77, 80, 81, 83, 84, 86, 89, 91, 92, 93, 95, 98, 99, 101, 102, 103, 105, 108, 110, 111, 113, 116 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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

As a word, A284848 = 01101001101101001011101..., in which 1 is in positions 2,3,5,8,9,...

MATHEMATICA

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

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"1100" -> "1"}]

st = ToCharacterCode[w1] - 48  (* A284848 *)

Flatten[Position[st, 0]]  (* A285091 *)

Flatten[Position[st, 1]]  (* A285092 *)

CROSSREFS

Cf. A010060, A284848, A285091.

Sequence in context: A247547 A096974 A286486 * A027756 A119863 A285253

Adjacent sequences:  A285089 A285090 A285091 * A285093 A285094 A285095

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 10 2017

STATUS

approved

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Last modified November 17 00:02 EST 2018. Contains 317275 sequences. (Running on oeis4.)