Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A028506
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A028506 Number of non-descending integral vectors b of length n such that number of symmetric 0-1-matrices A of order n with row sums <= b is odd. +0
1
1, 2, 4, 10, 24, 68 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A057734 A003104 A121186 this_sequence A029893 A060776 A061055

Adjacent sequences: A028503 A028504 A028505 this_sequence A028507 A028508 A028509

KEYWORD

nonn

AUTHOR

TORSTEN.SILLKE(AT)LHSYSTEMS.COM

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 August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research

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