A202987 Number of nX7 0..2 arrays with every nonzero element less than or equal to some NW, E or S neighbor

1, 44885, 52328419, 31806596079, 20459663726506, 14227778139316647, 9811910575029966643, 6702883342270345907211, 4584179551226559729177506, 3138573547685403657998819163, 2148457945272985920313446628040

Offset

1,2

Comments

Column 7 of A202988

Links

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

Example

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

Crossrefs

Sequence in context: A251790 A197421 A197614 * A183590 A230618 A185574

Adjacent sequences: A202984 A202985 A202986 * A202988 A202989 A202990

Keyword

nonn

Author

R. H. Hardin Dec 26 2011

Status

approved