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

 

Logo

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A136280 Twice A136279. 3
0, 0, 2, 24, 86, 326, 16848, 1165538, 80584148 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Another version of A136279 (appropriate since each 2-cycle has two members).

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A119060 A119050 A119068 * A123831 A138648 A172225

Adjacent sequences:  A136277 A136278 A136279 * A136281 A136282 A136283

KEYWORD

nonn

AUTHOR

Don Knuth, Mar 26 2008

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 September 25 22:57 EDT 2018. Contains 315425 sequences. (Running on oeis4.)