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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A032140 "CFK" (necklace, size, unlabeled) transform of 2,1,1,1... 1
1, 2, 1, 3, 3, 4, 8, 9, 13, 16, 32, 35, 53, 68, 92, 157, 193, 264, 356, 487, 609, 1036, 1224, 1729, 2237, 3072, 3904, 5227, 7853, 9764, 13148, 17261, 22817, 29512, 38980, 48999, 72953, 88828, 119376, 152449, 202941, 255592, 337472 (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)={apply(p->subst(serlaplace(p/y), y, 1), Vec(y-1 + (1 + 2*x*y)*prod(k=2, n, 1 + x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 2018

CROSSREFS

Sequence in context: A141576 A078019 A038071 * A032044 A158974 A152993

Adjacent sequences:  A032137 A032138 A032139 * A032141 A032142 A032143

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

a(0)=1 prepended by Andrew Howroyd, Jun 21 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 18 23:07 EDT 2018. Contains 316327 sequences. (Running on oeis4.)