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!)
A254912 Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
219706, 146168, 56618, 38461, 21730, 20173, 16945, 15221, 16516, 19402, 21128, 24860, 29918, 34438, 41417, 48432, 55653, 65527, 77019, 90158, 104074, 120406, 139028, 160707, 185166, 210852, 239269, 271368, 307712, 348186, 390329, 436989 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 6 of A254907
LINKS
EXAMPLE
Some solutions for n=1
..0..1..0....1..1..1....0..0..1....0..1..0....1..1..0....1..0..1....0..0..1
..0..0..0....0..0..0....0..0..0....0..0..1....0..1..0....0..0..0....0..0..0
..0..0..0....0..1..1....0..1..1....0..0..1....0..1..1....0..1..0....1..1..0
..0..0..1....0..0..1....1..1..0....0..0..0....0..0..1....0..0..0....1..1..0
..1..0..0....1..1..1....1..1..0....0..0..1....1..1..1....1..1..1....0..0..0
..0..1..0....1..0..0....1..1..0....1..1..1....0..0..1....1..0..0....1..1..1
..0..1..1....0..1..1....1..1..1....1..1..0....1..1..0....0..1..0....1..1..1
..1..0..1....1..1..0....1..0..1....1..0..1....0..1..0....0..0..0....1..0..0
CROSSREFS
Sequence in context: A201227 A185531 A258678 * A254905 A257207 A204968
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 10 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 24 22:33 EDT 2024. Contains 373690 sequences. (Running on oeis4.)