A250979 Number of (n+1) X (5+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.

280728, 120515358, 51487962431, 22020178055066, 9416933752243198, 4027179649653568467, 1722239421934657361988, 736522541298498562329652, 314976772820106600258421647, 134701061664914227033369089905

Offset

1,1

Comments

Column 5 of A250982.

Links

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

Example

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

Crossrefs

Cf. A250982.

Sequence in context: A145873 A253033 A203867 * A257151 A257158 A254740

Adjacent sequences: A250976 A250977 A250978 * A250980 A250981 A250982

Keyword

nonn

Author

R. H. Hardin, Nov 29 2014

Status

approved