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!)
A254994 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally and vertically 1
44548, 369357, 3575520, 32507240, 279655310, 2437254993, 21345394571, 185809115750, 1614349898421, 14028975772659, 121909383066134, 1059107018758027, 9199487443963934, 79896505182395084, 693854757988252184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254998

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Cf. A254998

Sequence in context: A194355 A258514 A258507 * A295480 A206166 A206380

Adjacent sequences:  A254991 A254992 A254993 * A254995 A254996 A254997

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 June 18 10:09 EDT 2021. Contains 345098 sequences. (Running on oeis4.)