A258607 Number of (n+2) X (3+2) 0..2 arrays with no 3 X 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.

682356, 2729104, 8093970, 20602521, 65662350, 206037316, 640379355, 1895470369, 5401266011, 14729220496, 39248673390, 101659583281, 259096554060, 646231093225, 1596389208750, 3877382377449, 9367919083092, 22311896261209

Offset

1,1

Comments

Column 3 of A258612.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A258612.

Sequence in context: A010095 A203713 A236986 * A081415 A354447 A101698

Adjacent sequences: A258604 A258605 A258606 * A258608 A258609 A258610

Keyword

nonn

Author

R. H. Hardin, Jun 05 2015

Status

approved