A250535 Number of (n+1)X(7+1) 0..3 arrays with nondecreasing max(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

2787971, 57297797, 885728348, 11375090117, 124278132580, 1206582455860, 10608507190002, 86519586107488, 662520750392365, 4828047984947538, 33746485369971392, 228069632455771019, 1498142997106862975

Offset

1,1

Comments

Column 7 of A250536

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..2....0..0..0..0..1..0..0..0....0..0..0..0..0..1..2..2
..0..0..0..1..0..1..3..1....0..0..1..3..0..1..2..2....0..0..0..1..3..2..3..2

Crossrefs

Sequence in context: A251835 A295471 A316487 * A203912 A355502 A356685

Adjacent sequences: A250532 A250533 A250534 * A250536 A250537 A250538

Keyword

nonn

Author

R. H. Hardin, Nov 24 2014

Status

approved