A254913 Number of (7+2) X (n+2) 0..1 arrays with every 3 X 3 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.

616608, 268310, 73167, 38752, 21843, 16493, 10974, 10203, 10488, 11818, 12925, 15168, 18127, 21500, 26459, 31278, 34998, 41431, 49279, 56961, 66198, 77601, 89779, 104252, 120811, 139506, 160068, 182670, 208909, 238276, 269065, 303271, 341491

Offset

1,1

Comments

Row 7 of A254907.

Links

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

Example

Some solutions for n=1
..0..0..0....0..0..0....1..0..0....0..1..0....0..1..0....0..1..0....0..0..0
..0..0..0....0..0..0....0..0..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..1..0....0..0..1
..0..1..1....0..1..0....0..1..1....1..1..0....1..0..0....1..1..1....0..0..1
..0..0..0....0..1..1....0..0..1....1..0..0....1..0..0....1..0..1....0..0..0
..0..0..1....1..1..1....1..1..1....1..1..1....0..0..0....0..0..1....1..0..0
..1..0..1....1..0..0....1..1..1....0..1..1....1..1..0....1..1..0....1..0..1
..1..1..1....1..0..0....1..1..1....1..1..0....0..1..1....0..0..0....1..0..0
..1..1..1....1..1..1....1..0..1....0..0..1....0..0..1....1..1..1....1..1..1

Crossrefs

Cf. A254907.

Sequence in context: A206510 A172635 A172707 * A254906 A257208 A122131

Adjacent sequences: A254910 A254911 A254912 * A254914 A254915 A254916

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved