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!)
A287344 Positions of 2 in A287341. 4
3, 5, 9, 11, 13, 15, 23, 25, 35, 37, 41, 43, 45, 47, 55, 57, 65, 67, 75, 77, 93, 95, 99, 101, 111, 113, 117, 119, 121, 123, 131, 133, 149, 151, 155, 157, 167, 169, 173, 175, 179, 181, 185, 187, 189, 191, 199, 201, 211, 213, 217, 219, 221, 223, 231, 233, 241 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 0}, 2 -> 0}] &, {0}, 10] (* A287341 *)

Flatten[Position[s, 0]] (* A287342 *)

Flatten[Position[s, 1]] (* A287343 *)

Flatten[Position[s, 2]] (* A287344 *)

CROSSREFS

Cf. A287341, A287342, A287343.

Sequence in context: A319009 A294427 A141231 * A047623 A190523 A161781

Adjacent sequences:  A287341 A287342 A287343 * A287345 A287346 A287347

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 24 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 12 13:02 EDT 2021. Contains 343823 sequences. (Running on oeis4.)