A233478 Number of (n+2)X(4+2) 0..3 arrays with no increasing sequence of length 3 horizontally or vertically

21111771232, 45223720670867, 94192817031882237, 196122261590679299496, 407469009947158776878785, 846537132143871418217915702, 1758426966252867944813771559333, 3652590644663404309130794104320920

Offset

1,1

Comments

Column 4 of A233480

Links

R. H. Hardin, Table of n, a(n) for n = 1..69

Example

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

Crossrefs

Sequence in context: A172794 A068243 A034656 * A216016 A119478 A337914

Adjacent sequences: A233475 A233476 A233477 * A233479 A233480 A233481

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved