login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A181267
Number of nX(n+1) binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order
0
4, 11, 87, 1793, 108161, 17946611, 9014442178
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
COMMENTS
Superdiagonal 1 of
A181266
LINKS
Table of n, a(n) for n=1..7.
EXAMPLE
M and M*Mtranspose (mod 2) for 3X4
..0..0..1..1......0..1..1
..1..0..1..0......1..0..0
..1..1..1..0......1..0..1
CROSSREFS
Sequence in context:
A004796
A320289
A298858
*
A280036
A125888
A266894
Adjacent sequences:
A181264
A181265
A181266
*
A181268
A181269
A181270
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 28 13:47 EDT 2024. Contains 375507 sequences. (Running on oeis4.)