login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A181275
Number of nX(n+1) binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly decreasing order
0
4, 11, 79, 1629, 87873, 15691171, 7892201343
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
COMMENTS
Superdiagonal 1 of
A181274
LINKS
Table of n, a(n) for n=1..7.
EXAMPLE
M and M*Mtranspose (mod 2) for 3X4
..0..0..0..1......1..0..0
..0..1..0..0......0..1..1
..0..1..1..0......0..1..0
CROSSREFS
Sequence in context:
A032110
A054234
A213328
*
A000850
A004796
A320289
Adjacent sequences:
A181272
A181273
A181274
*
A181276
A181277
A181278
KEYWORD
nonn
AUTHOR
R. H. Hardin
Oct 10 2010
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified August 22 06:14 EDT 2024. Contains 375356 sequences. (Running on oeis4.)