login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A257267 Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum 1
119716, 2292196, 29746116, 380991361, 3966480400, 40331082276, 361698799396, 3170981525625, 25610765461264, 202919084831089, 1519992095029776, 11211245053949889, 79474991441000464, 556561574072997025 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A257270

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..175

EXAMPLE

Some solutions for n=1

..2..1..1..0....2..1..1..0....0..2..0..1....2..1..0..0....2..2..0..0

..0..0..2..0....2..1..1..0....1..2..0..1....0..1..1..1....1..2..1..0

..2..2..2..1....0..1..2..1....2..2..2..2....1..2..0..1....1..1..0..2

CROSSREFS

Cf. A257270

Sequence in context: A263083 A250151 A257381 * A175581 A031664 A234736

Adjacent sequences:  A257264 A257265 A257266 * A257268 A257269 A257270

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 19 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 25 18:38 EDT 2022. Contains 354851 sequences. (Running on oeis4.)