A251489 Number of (n+1)X(6+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements

158478336, 1575813859456, 15661071542167376, 155634922739125247648, 1546645977595845122949056, 15370016315641490766809697920, 152741708226257877188571836140832, 1517892242344262925503829520026004048

Offset

1,1

Comments

Column 6 of A251491

Links

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

Example

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

Crossrefs

Sequence in context: A022249 A204605 A289248 * A205641 A118078 A365019

Adjacent sequences: A251486 A251487 A251488 * A251490 A251491 A251492

Keyword

nonn

Author

R. H. Hardin, Dec 03 2014

Status

approved