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A288625 Positions of 0 in A288375; complement of A283794. 3
2, 3, 5, 7, 8, 11, 12, 14, 17, 18, 20, 22, 23, 27, 28, 30, 32, 33, 36, 37, 39, 43, 44, 46, 48, 49, 52, 53, 55, 58, 59, 61, 63, 64, 69, 70, 72, 74, 75, 78, 79, 81, 84, 85, 87, 89, 90, 94, 95, 97, 99, 100, 103, 104, 106, 111, 112, 114, 116, 117, 120, 121, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n -> 2, and 0 < 2 - a(n)/n < 1/2 for n >= 1.

LINKS

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

MATHEMATICA

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

w[n_] := StringReplace[w[n - 1], {"00" -> "1000", "10" -> "1001"}]

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

st = ToCharacterCode[w[24]] - 48;   (* A288375 *)

p0 = Flatten[Position[st, 0]];  (* A288625 *)

p1 = Flatten[Position[st, 1]];  (* A283794 *)

CROSSREFS

Cf. A288625, A283794.

Sequence in context: A284655 A083028 A281015 * A189168 A182799 A112929

Adjacent sequences:  A288622 A288623 A288624 * A288626 A288627 A288628

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 24 2017

STATUS

approved

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Last modified January 18 03:09 EST 2021. Contains 340249 sequences. (Running on oeis4.)