login
A254992
Number of (n+2)X(2+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
2679, 14320, 70331, 369357, 1939341, 10216539, 54357112, 289904665, 1544994778, 8237573436, 43939277433, 234399968825, 1250409023076, 6670253180113, 35582350188965, 189813584961248, 1012551819177382, 5401379190197737
OFFSET
1,1
COMMENTS
Column 2 of A254998
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..1....0..1..0..1....0..0..0..1....1..1..0..0....1..1..0..1
..0..1..1..1....1..0..0..0....1..1..0..1....1..0..1..1....1..1..0..1
..0..0..1..0....1..0..0..0....1..1..1..1....0..0..0..1....1..1..1..1
..0..0..1..0....1..1..0..0....1..0..0..0....0..0..0..1....1..0..0..0
..0..1..1..1....0..0..0..0....0..1..1..1....1..0..0..1....0..1..1..1
CROSSREFS
Sequence in context: A345825 A258505 A258512 * A252210 A252203 A252202
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 11 2015
STATUS
approved