A251441 Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements

549607078, 6076163446285, 59895416958296448, 616672357656950586311, 6240722966413231119519432, 63577339993396485656457199590, 646008743174147370182177022951419, 6570708441458867604854496574684740934

Offset

1,1

Comments

Column 7 of A251442

Links

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

Example

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

Crossrefs

Sequence in context: A172619 A090468 A214480 * A350136 A234199 A071135

Adjacent sequences: A251438 A251439 A251440 * A251442 A251443 A251444

Keyword

nonn

Author

R. H. Hardin, Dec 02 2014

Status

approved