login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A287448 Positions of 1 in A287382; complement of A287440. 3
3, 4, 10, 12, 15, 16, 22, 23, 27, 33, 37, 40, 42, 45, 46, 52, 53, 59, 61, 64, 65, 69, 73, 76, 77, 83, 84, 88, 92, 95, 96, 100, 106, 107, 113, 117, 120, 122, 125, 126, 132, 133, 139, 141, 144, 145, 151, 152, 156, 162, 166, 169, 171, 174, 175, 179, 183, 186 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: a(n)/n -> 3.19..., 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

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

w[n_] := StringReplace[w[n - 1], {"00" -> "1000", "10" -> "001"}]

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

st = ToCharacterCode[w[23]] - 48   (* A287382 *)

Flatten[Position[st, 0]]  (* A287440 *)

Flatten[Position[st, 1]]  (* A287448 *)

CROSSREFS

Cf. A287382, A287440.

Sequence in context: A242654 A243681 A242881 * A325235 A135116 A259559

Adjacent sequences:  A287445 A287446 A287447 * A287449 A287450 A287451

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 18 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 18 22:08 EDT 2019. Contains 326109 sequences. (Running on oeis4.)