A251306 Number of (n+1)X(6+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements

42010273, 144740268503, 490318888438553, 1661155660245079699, 5630923998265406722615, 19086544089749117279820644, 64691402985380930946801585128, 219262663801594343256152022742493

Offset

1,1

Comments

Column 6 of A251308

Links

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

Example

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

Crossrefs

Sequence in context: A130681 A261658 A274812 * A198168 A218109 A263561

Adjacent sequences: A251303 A251304 A251305 * A251307 A251308 A251309

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved