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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A151652 Number of permutations of 6 indistinguishable copies of 1..n with exactly 3 adjacent element pairs in decreasing order. 0
0, 400, 233300, 35138736, 3656408776, 333546436832 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A187051 A151608 A022232 * A197441 A013767 A013895

Adjacent sequences:  A151649 A151650 A151651 * A151653 A151654 A151655

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) May 29 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 18 00:14 EST 2012. Contains 206085 sequences.