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A289151 Positions of 1 in A289235; complement of A289002. 3
3, 10, 14, 16, 21, 23, 26, 31, 35, 43, 48, 52, 59, 66, 70, 74, 81, 83, 88, 90, 95, 99, 103, 110, 114, 116, 121, 123, 128, 130, 135, 139, 143, 153, 155, 158, 163, 167, 174, 181, 188, 192, 194, 199, 201, 204, 209, 213, 223, 225, 228, 233, 237, 244, 251, 258 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n -> 1.56..., and if m denotes this number, then -1 < m - a(n)/n < 2 for n >= 1.

LINKS

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

MATHEMATICA

z = 11; (* number of iterates *)

s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];

w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "01" -> "100", "10" -> "000"}]

TableForm[Table[w[n], {n, 0, 10}]]

st = ToCharacterCode[w[z]] - 48   (* A289235 *)

Flatten[Position[st, 0]]  (* A289002 *)

Flatten[Position[st, 1]]  (* A289151 *)

CROSSREFS

Cf. A289235, A289002.

Sequence in context: A002354 A079943 A041865 * A085776 A289106 A289018

Adjacent sequences:  A289148 A289149 A289150 * A289152 A289153 A289154

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 29 2017

STATUS

approved

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Last modified January 19 16:16 EST 2021. Contains 340270 sequences. (Running on oeis4.)