A188985 - OEIS

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

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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