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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A152509 1/30 of the number of permutations of 5 indistinguishable copies of 1..n with exactly 2 local maxima. 0
0, 2, 139, 8036, 452068, 25331360, 1418668912 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A051029 A084560 A054681 * A094482 A101232 A093887

Adjacent sequences:  A152506 A152507 A152508 * A152510 A152511 A152512

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Dec 06 2008

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 17 03:18 EST 2012. Contains 205978 sequences.