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

%I #3 Mar 31 2012 12:35:18

%S 0,300,753975,188612400,26312329155,2954839555836

%N Number of permutations of 6 indistinguishable copies of 1..n arranged in a circle with exactly 4 adjacent element pairs in decreasing order.

%K nonn

%O 1,2

%A _R. H. Hardin_ May 21 2009

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 July 24 11:31 EDT 2024. Contains 374583 sequences. (Running on oeis4.)