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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A032156 "CGK" (necklace, element, unlabeled) transform of 2,2,2,2,... 1
1, 2, 3, 6, 11, 18, 37, 66, 113, 222, 375, 674, 1195, 2170, 3589, 6126, 11173, 18202, 31543, 51098, 87675, 147222, 241721, 390426, 635365, 1065762, 1687559, 2774262, 4369023, 6947858, 11065897, 17908786, 27866053 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..1000

C. G. Bower, Transforms (2)

Index entries for sequences related to Lyndon words

PROG

(PARI) seq(n)=[subst(serlaplace(p/y), y, 1) | p <- Vec(y-1+prod(k=1, n, 1 + x^k*y + O(x*x^n))^2)] \\ Andrew Howroyd, Sep 13 2018

CROSSREFS

Sequence in context: A003479 A093367 A054186 * A146385 A039827 A004135

Adjacent sequences:  A032153 A032154 A032155 * A032157 A032158 A032159

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

a(0)=1 prepended by Andrew Howroyd, Sep 13 2018

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 19:36 EDT 2018. Contains 316293 sequences. (Running on oeis4.)