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!)
A254975 Number of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 and no column sum 0 1
9961, 116534, 1592767, 14786310, 157053228, 1760294428, 18669294271, 198281505279, 2142895186847, 23011122611592, 246449197986769, 2646444909295868, 28410569274570638, 304803064075498793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A254978

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A252573 A266917 A031858 * A182696 A126978 A188790

Adjacent sequences:  A254972 A254973 A254974 * A254976 A254977 A254978

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2015

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 1 08:39 EDT 2020. Contains 337442 sequences. (Running on oeis4.)