A186849 Number of (n+1) X 9 binary arrays with no 2 X 2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2 X 2 subblock diagonal sum less antidiagonal sum.

52378, 1514138, 50707346, 1675514684, 58406620364, 2065646009310, 73006349720400, 2594103702923620, 92296881933749596, 3283815163241221908, 116881968695751606560, 4160746958216316764578, 148113678875510444112726

Offset

1,1

Comments

Column 8 of A186850.

Links

R. H. Hardin, Table of n, a(n) for n = 1..43

Example

Some solutions for 3 X 9
..0..0..0..0..1..1..0..1..1....1..0..0..0..1..0..0..1..1
..0..1..1..0..1..0..1..0..0....0..0..0..1..1..1..0..1..0
..0..0..1..0..0..1..0..1..0....0..0..1..0..1..1..1..1..1

Crossrefs

Cf. A186850.

Sequence in context: A379981 A191303 A291869 * A107654 A345611 A346328

Adjacent sequences: A186846 A186847 A186848 * A186850 A186851 A186852

Keyword

nonn

Author

R. H. Hardin, Feb 27 2011

Status

approved