A235763 Number of (n+1) X (6+1) 0..1 arrays with the sum of each 2 X 2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.

2482, 55816, 1310058, 26947867, 548550245, 10315124920, 190693042666, 3383470907219, 58972454432362, 1000721111089237, 16642224739736490, 270150372438476479, 4285984985234190573, 66354310571145977712

Offset

1,1

Comments

Column 6 of A235765.

Links

R. H. Hardin, Table of n, a(n) for n = 1..75

Example

Some solutions for n=2
..1..0..1..0..1..1..0....0..1..1..1..1..1..0....1..1..1..1..1..1..1
..0..0..0..1..1..1..1....0..0..0..1..0..1..1....0..1..1..1..1..1..1
..0..1..0..1..1..0..1....0..1..0..0..1..0..1....1..0..0..1..1..0..1

Crossrefs

Cf. A235765.

Sequence in context: A291199 A260766 A003917 * A235546 A214477 A181258

Adjacent sequences: A235760 A235761 A235762 * A235764 A235765 A235766

Keyword

nonn

Author

R. H. Hardin, Jan 15 2014

Status

approved