A251043 Number of (6+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

521227, 12029009, 179902335, 2247957615, 23202398270, 213854374926, 1771290770332, 13582904844169, 97231303353077, 659109917578927, 4259413182294584, 26453650627085468, 158675945423164524

Offset

1,1

Comments

Row 6 of A251037

Links

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

Example

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

Crossrefs

Sequence in context: A186180 A186172 A186171 * A364263 A250705 A366823

Adjacent sequences: A251040 A251041 A251042 * A251044 A251045 A251046

Keyword

nonn

Author

R. H. Hardin, Nov 29 2014

Status

approved