A188985 Number of n X n binary arrays without the pattern 0 0 1 antidiagonally or horizontally

2, 16, 295, 10812, 852448, 144733702, 55080396536, 46897992282392, 90347796732080200, 391616769266718212264, 3836378499038367303867568, 84709934712009857654653118434, 4225407805631534612606491862152228

Offset

1,1

Comments

Diagonal of A188992

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

Some solutions for 3X3
..1..0..1....0..1..1....1..0..0....1..1..1....1..0..1....0..1..1....0..1..1
..1..0..1....1..1..0....1..1..0....1..0..1....0..1..0....0..1..1....0..0..0
..0..1..0....0..1..1....1..0..0....0..1..0....1..0..1....1..1..0....0..0..0

Crossrefs

Sequence in context: A189689 A188740 A259647 * A362734 A009250 A335618

Adjacent sequences: A188982 A188983 A188984 * A188986 A188987 A188988

Keyword

nonn

Author

R. H. Hardin Apr 15 2011

Status

approved