A250518 Number of (n+1)X(7+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

9605300, 6146257386, 3049397341176, 1507593926459193, 703840057362860071, 323113599535682557884, 144418186435193611803491, 64043487101955794420789576, 28093673932744357990318851616

Offset

1,1

Comments

Column 7 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..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0
..3..1..0..2..2..0..2..1....2..1..1..3..1..0..3..2....2..0..0..1..2..3..0..3

Crossrefs

Sequence in context: A075009 A186627 A203660 * A268252 A251504 A103936

Adjacent sequences: A250515 A250516 A250517 * A250519 A250520 A250521

Keyword

nonn

Author

R. H. Hardin, Nov 24 2014

Status

approved