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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A188447 Number of (5*n)Xn binary arrays with nonzero rows in decreasing order and 5 ones in every column 0
0, 0, 0, 205, 250735, 425677958, 1184910460297, 5319037255069867 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row 5 of A188445

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for 20X4

..1..1..1..1....1..1..1..0....1..1..1..1....1..1..1..0....1..1..0..1

..1..1..1..0....1..1..0..1....1..1..0..1....1..1..0..1....1..0..1..1

..1..1..0..1....1..0..1..1....1..1..0..0....1..0..1..1....1..0..1..0

..1..0..1..1....1..0..1..0....1..0..1..0....1..0..1..0....1..0..0..1

..1..0..0..0....1..0..0..1....1..0..0..1....1..0..0..0....1..0..0..0

..0..1..1..0....0..1..1..0....0..1..1..0....0..1..1..1....0..1..1..1

..0..1..0..1....0..1..0..1....0..1..0..1....0..1..1..0....0..1..1..0

..0..0..1..1....0..1..0..0....0..0..1..1....0..1..0..1....0..1..0..1

..0..0..0..0....0..0..1..1....0..0..1..0....0..0..0..1....0..1..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..1..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

CROSSREFS

Sequence in context: A203862 A015289 A203888 * A080529 A058180 A025351

Adjacent sequences:  A188444 A188445 A188446 * A188448 A188449 A188450

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 31 2011

STATUS

approved

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 May 20 10:38 EDT 2013. Contains 225458 sequences.