Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A151645
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A151645 Number of permutations of 4 indistinguishable copies of 1..n with exactly 7 adjacent element pairs in decreasing order. +0
1
0, 112, 15018688, 69830127680, 99825129369600, 79985306860607376 (list; graph; listen)
OFFSET

2,2

CROSSREFS

Sequence in context: A051366 A051363 A159432 this_sequence A115486 A157885 A054033

Adjacent sequences: A151642 A151643 A151644 this_sequence A151646 A151647 A151648

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) May 29 2009

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


AT&T Labs Research