A251044 Number of (7+1)X(n+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction

2668193, 72779934, 1238480366, 17355955112, 197532441119, 1992180311388, 17881871080466, 147706859846662, 1131339841663140, 8163106730310638, 55867327701838498, 365845360732352239, 2304556041467332659

Offset

1,1

Comments

Row 7 of A251037

Links

R. H. Hardin, Table of n, a(n) for n = 1..67

Example

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

Crossrefs

Sequence in context: A157840 A063413 A210388 * A151513 A147712 A250840

Adjacent sequences: A251041 A251042 A251043 * A251045 A251046 A251047

Keyword

nonn

Author

R. H. Hardin, Nov 29 2014

Status

approved