A186847 Number of (n+1)X7 binary arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum

5182, 79778, 1371258, 22982034, 397002882, 6898399878, 119236307198, 2065646009310, 35799060427804, 620100415074980, 10742761367704694, 186117631339287250, 3224333528341874224, 55859428401516527490

Offset

1,1

Comments

Column 6 of A186850

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 3X7
..1..0..0..1..0..0..0....1..1..0..0..0..1..0....0..0..1..1..0..1..1
..1..0..1..0..1..0..1....1..1..1..0..0..0..0....0..1..0..0..0..0..0
..0..0..0..1..1..1..1....1..0..0..1..0..1..0....1..1..0..1..0..1..0

Crossrefs

Sequence in context: A184000 A247259 A186900 * A185485 A061050 A175745

Adjacent sequences: A186844 A186845 A186846 * A186848 A186849 A186850

Keyword

nonn

Author

R. H. Hardin Feb 27 2011

Status

approved