A253818 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically

618856, 2008068, 5735723, 19866443, 75927303, 250052478, 681245242, 1390601653, 3467027641, 8832217221, 24155618827, 62298137597, 169253832792, 473982068000, 1360760065340, 3933485046506, 11262362192707, 32471019464156

Offset

1,1

Comments

Column 6 of A253820

Links

R. H. Hardin, Table of n, a(n) for n = 1..135

Example

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

Crossrefs

Sequence in context: A238053 A254802 A254809 * A341891 A341892 A236064

Adjacent sequences: A253815 A253816 A253817 * A253819 A253820 A253821

Keyword

nonn

Author

R. H. Hardin, Jan 14 2015

Status

approved