A234194 Number of (n+2)X(4+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards

19573980484, 37949401327593, 70353014214072836, 129683995610190417732, 238102482801724403487709, 436823007569342869436428517, 801056637867130701618124617385, 1468854073796612633425025864744824

Offset

1,1

Comments

Column 4 of A234196

Links

R. H. Hardin, Table of n, a(n) for n = 1..84

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

Crossrefs

Sequence in context: A262533 A317288 A234397 * A118466 A003810 A003803

Adjacent sequences: A234191 A234192 A234193 * A234195 A234196 A234197

Keyword

nonn

Author

R. H. Hardin, Dec 21 2013

Status

approved