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!)
A259012 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
914320, 459014, 134036, 49839, 35404, 49717, 73734, 133352, 251774, 493203, 985500, 1990343, 4028838, 8113534, 16154696, 31673619, 60993464, 115221230, 213437204, 387765033, 691277518, 1210138735, 2081956120, 3523173264 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A259006
LINKS
EXAMPLE
Some solutions for n=1
..1..1..0....0..1..0....0..1..1....0..1..1....0..0..0....0..0..0....0..0..1
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..1..1....1..0..1....1..1..0....1..0..0....0..0..1....1..0..0....0..1..1
..0..0..1....0..0..1....0..0..0....0..1..1....1..0..0....0..0..1....0..1..1
..1..1..0....1..0..0....1..1..0....0..1..0....0..0..0....1..1..0....0..1..0
..0..0..0....1..1..1....0..1..0....1..1..0....0..0..0....0..0..0....1..1..0
..1..1..1....0..1..1....0..1..0....0..1..1....0..1..1....1..1..1....0..1..1
..1..1..1....1..1..1....0..1..1....0..0..0....0..0..0....1..1..1....0..0..0
CROSSREFS
Sequence in context: A253991 A253998 A258908 * A259005 A256903 A185532
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 16 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 April 18 06:24 EDT 2024. Contains 371769 sequences. (Running on oeis4.)