login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A151609 Number of permutations of 6 indistinguishable copies of 1..n arranged in a circle with exactly 4 adjacent element pairs in decreasing order. 0
0, 300, 753975, 188612400, 26312329155, 2954839555836 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A294687 A015275 A051306 * A004225 A004226 A297913
KEYWORD
nonn
AUTHOR
R. H. Hardin May 21 2009
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 22:33 EDT 2024. Contains 373690 sequences. (Running on oeis4.)