A234377 Number of (n+2)X(4+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards

245837376, 107611542837, 45066201971526, 18662305835280147, 7686715868506969433, 3160465819880176888222, 1298519548083052661585800, 533376343057660096808110625, 219066299067369539751011006096

Offset

1,1

Comments

Column 4 of A234380

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

Crossrefs

Sequence in context: A146073 A046398 A033626 * A210020 A015393 A262989

Adjacent sequences: A234374 A234375 A234376 * A234378 A234379 A234380

Keyword

nonn

Author

R. H. Hardin, Dec 25 2013

Status

approved