login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A288215 Positions of 1 in A288213; complement of A288215. 3
3, 6, 7, 10, 13, 14, 16, 17, 20, 23, 24, 27, 30, 31, 33, 34, 37, 38, 40, 41, 44, 47, 48, 51, 54, 55, 57, 58, 61, 64, 65, 68, 71, 72, 74, 75, 78, 79, 81, 82, 85, 88, 89, 91, 92, 95, 96, 98, 99, 102, 105, 106, 109, 112, 113, 115, 116, 119, 122, 123, 126, 129 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

-1 < 2 - a(n)/n < 0 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" -> "0010", "1" -> "010"}]

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

st = ToCharacterCode[w[11]] - 48   (* A288213 *)

Flatten[Position[st, 0]]  (* A288214 *)

Flatten[Position[st, 1]]  (* A288215 *)

CROSSREFS

Cf. A288213, A288214.

Sequence in context: A101885 A096068 A045412 * A284625 A047281 A182909

Adjacent sequences:  A288212 A288213 A288214 * A288216 A288217 A288218

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 07 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 May 13 08:08 EDT 2021. Contains 343836 sequences. (Running on oeis4.)