login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A186125 Number of (n+1)X7 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum 1
182, 1878, 10502, 79782, 539962, 4056794, 29491822, 220010616, 1637583596, 12272724126, 92041463782, 692502277290, 5211824476838, 39292304082970, 296277012735686, 2235990214584584, 16877344601227160, 127445629177320202 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A186128

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A154067 A234982 A234975 * A209852 A321637 A023904

Adjacent sequences:  A186122 A186123 A186124 * A186126 A186127 A186128

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 13 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 20 00:37 EDT 2021. Contains 348098 sequences. (Running on oeis4.)