Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A048044
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A048044 Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n+1)/3. +0
1
0, 0, 0, 0, 1, 4, 10, 30, 60, 105, 217, 364, 588, 1260, 2250, 3960, 9460, 17380, 30745, 71071, 126763, 219765, 503685, 898380, 1572228, 3681588, 6619596, 11666760, 27412041, 49146654, 86461704, 202871284, 363087604, 639438019 (list; graph; listen)
OFFSET

1,6
CROSSREFS

Adjacent sequences: A048041 A048042 A048043 this_sequence A048045 A048046 A048047

Sequence in context: A026152 A025179 A116388 this_sequence A047188 A002220 A090578

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

page 1

Search completed in 0.006 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 October 6 16:13 EDT 2008. Contains 144667 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.