A181222 Number of nX6 binary matrices with no three 1's adjacent in a line horizontally, vertically, diagonally or antidiagonally

44, 1936, 34020, 845531, 21513936, 507962194, 12297765846, 298705742479, 7214603356059, 174532135006271, 4223718879095262, 102172834596986892, 2471821868183143126, 59801751244062857757, 1446764589780206695039

Offset

1,1

Comments

Column 6 of A181224

Links

R. H. Hardin, Table of n, a(n) for n=1..200

Example

Some avoided solutions for 3X6
..0..0..0..1..1..0....0..0..0..0..1..0....1..0..1..1..1..0....0..1..0..0..0..0
..0..0..1..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..1..1..0..0
..0..1..0..0..0..0....0..0..1..1..1..0....0..0..0..0..0..0....0..0..0..1..0..0

Crossrefs

Sequence in context: A206992 A206934 A206869 * A188564 A207086 A207180

Adjacent sequences: A181219 A181220 A181221 * A181223 A181224 A181225

Keyword

nonn

Author

R. H. Hardin Oct 10 2010

Status

approved