A251305 Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements

3609989, 3969434142, 4336649865709, 4729336342478281, 5160035123473951638, 5630923998265406722615, 6144539969766873395808341, 6704738093791104816375353249, 7315918137332464122401881746663

Offset

1,1

Comments

Column 5 of A251308

Links

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

Example

Some solutions for n=1
..2..0..2..3..2..1....0..0..1..3..3..0....0..0..1..1..3..1....0..0..1..3..0..2
..0..3..3..3..2..0....0..3..3..2..0..0....0..0..3..2..2..0....0..2..2..3..0..3

Crossrefs

Sequence in context: A352220 A214173 A183970 * A252499 A235970 A116221

Adjacent sequences: A251302 A251303 A251304 * A251306 A251307 A251308

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved