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!)
A285619 Positions of 1 in A285617; complement of A285618. 3
1, 5, 6, 7, 8, 9, 10, 11, 15, 19, 23, 27, 31, 35, 39, 40, 41, 42, 43, 44, 45, 49, 50, 51, 52, 53, 54, 55, 59, 60, 61, 62, 63, 64, 65, 69, 70, 71, 72, 73, 74, 75, 79, 80, 81, 82, 83, 84, 85, 89, 90, 91, 92, 93, 94, 95, 99, 100, 101, 102, 103, 104, 105, 109 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture:  a(n)/n -> 2.

LINKS

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

EXAMPLE

As a word, A285617 = 1000111111100010001001..., in which 1 is in positions 1,5,6,7,8,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 0, 0}}] &, {0}, 10] (* A285617 *)

Flatten[Position[s, 0]]  (* A285618 *)

Flatten[Position[s, 1]]  (* A285619 *)

CROSSREFS

Cf. A285617, A285618.

Sequence in context: A155771 A138167 A161839 * A120190 A172072 A121542

Adjacent sequences:  A285616 A285617 A285618 * A285620 A285621 A285622

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 01 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 28 19:21 EDT 2020. Contains 338064 sequences. (Running on oeis4.)