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A288624 Positions of 1 in A288622; complement of A288623. 3
3, 5, 7, 8, 11, 13, 14, 17, 19, 20, 23, 26, 29, 31, 33, 34, 37, 39, 40, 43, 46, 49, 51, 53, 54, 57, 59, 60, 63, 66, 69, 71, 73, 74, 77, 80, 82, 84, 85, 88, 91, 93, 95, 96, 99, 101, 102, 105, 107, 108, 111, 114, 117, 119, 121, 122, 125, 127, 128, 131, 134 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n->2.19..., and if m denotes this number, then -1 < m - a(n)/n) < 1 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" -> "0110", "1" -> "01"}]

Table[w[n], {n, 0, 8}]

st = ToCharacterCode[w[10]] - 48   (* A288622 *)

Flatten[Position[st, 0]]  (* A288623 *)

Flatten[Position[st, 1]]  (* A288624 *)

CROSSREFS

Cf. A288622, A288623.

Sequence in context: A260518 A190333 A190061 * A168162 A047485 A024969

Adjacent sequences:  A288621 A288622 A288623 * A288625 A288626 A288627

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 14 2017

STATUS

approved

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Last modified November 26 09:38 EST 2020. Contains 338639 sequences. (Running on oeis4.)