A257268 Number of (n+2)X(3+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum

1257600, 29746116, 358153488, 4497848356, 39749497116, 360292859536, 2681201402880, 20280611560000, 136546079823132, 928066750499344, 5889856685235160, 37580052583485504, 230454199018052812

Offset

1,1

Comments

Column 3 of A257270

Links

R. H. Hardin, Table of n, a(n) for n = 1..47

Example

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

Crossrefs

Cf. A257270

Sequence in context: A126174 A186089 A208489 * A233465 A250596 A250825

Adjacent sequences: A257265 A257266 A257267 * A257269 A257270 A257271

Keyword

nonn

Author

R. H. Hardin, Apr 19 2015

Status

approved