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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A287676 Positions of 1 in A287674; complement of A287675. 4
1, 4, 5, 6, 9, 10, 13, 14, 15, 18, 19, 20, 23, 24, 27, 28, 29, 32, 33, 36, 37, 38, 41, 42, 43, 46, 47, 50, 51, 52, 55, 56, 57, 60, 61, 64, 65, 66, 69, 70, 73, 74, 75, 78, 79, 80, 83, 84, 87, 88, 89, 92, 93, 96, 97, 98, 101, 102, 103, 106, 107, 110, 111, 112 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: -1 < n*r - a(n) < 2 for n >= 1, where r = 4 - sqrt(5).

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0}}] &, {0}, 10] (* A003849 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0" -> "1", "1" -> "001"}]

st = ToCharacterCode[w1] - 48    (* A287674 *)

Flatten[Position[st, 0]]  (* A287675 *)

Flatten[Position[st, 1]]  (* A287676 *)

CROSSREFS

Cf. A287674, A287675.

Sequence in context: A159629 A328173 A223138 * A082812 A255634 A075903

Adjacent sequences:  A287673 A287674 A287675 * A287677 A287678 A287679

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 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 October 23 03:21 EDT 2019. Contains 328335 sequences. (Running on oeis4.)