A250515 Number of (n+1)X(4+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction

39187, 2817780, 166583429, 9680713976, 529549691761, 28601087487209, 1507593926459193, 79158901718859170, 4118346250550015247, 214152428120123667732, 11098091889851055507353, 575298993463899645319726

Offset

1,1

Comments

Column 4 of A250519

Links

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

Example

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

Crossrefs

Sequence in context: A031644 A224622 A233955 * A031667 A196200 A274128

Adjacent sequences: A250512 A250513 A250514 * A250516 A250517 A250518

Keyword

nonn

Author

R. H. Hardin, Nov 24 2014

Status

approved