A234070 Number of (2+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or diagonally downwards

11758836, 2080660489, 357463146593, 61295636223137, 10484411392439606, 1792961333867967659, 306554863282538650963, 52412780349441762503332, 8961050495323303553498002, 1532074589148145099758664619

Offset

1,1

Comments

Row 2 of A234068

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

Crossrefs

Sequence in context: A141281 A028241 A248166 * A228978 A234831 A280983

Adjacent sequences: A234067 A234068 A234069 * A234071 A234072 A234073

Keyword

nonn

Author

R. H. Hardin, Dec 19 2013

Status

approved