A234384 Number of (4+2) X (n+2) 0..2 arrays with no increasing sequence of length 3 vertically, diagonally downwards or antidiagonally downwards.

183669567, 84764693441, 39700991817357, 18662305835280147, 8769302493268549527, 4119486037640399438233, 1935168020666190781045953, 909080437851394630392412551, 427058495597356512473171616527, 200618984540225934780225092749983, 94244616167304794010241597909677369

Offset

1,1

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

Crossrefs

Row 4 of A234380.

Sequence in context: A211239 A180464 A179586 * A226589 A201557 A234050

Adjacent sequences: A234381 A234382 A234383 * A234385 A234386 A234387

Keyword

nonn

Author

R. H. Hardin, Dec 25 2013

Extensions

Name corrected by Andrew Howroyd, Mar 20 2025

Status

approved