A188753 Number of 8 X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.
149, 22201, 1617326, 148041805, 13666030547, 1229158478968, 111642244016936, 10143499802360135, 920790924506170069, 83620597537361329902, 7594234703661480583759, 689675447630925638390079
Offset: 1
Keywords
Examples
Some solutions for 8 X 3 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..0..1....0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0 ..0..0..0....1..1..0....0..0..1....0..1..1....0..0..1....0..1..1....1..1..1 ..1..1..1....0..1..1....1..0..0....0..0..0....0..0..1....0..0..0....1..0..1 ..1..0..0....0..0..0....0..0..0....0..1..1....1..0..0....0..1..1....0..0..0 ..0..0..0....1..0..0....0..1..0....0..1..0....1..1..0....0..1..0....1..1..1 ..1..0..0....0..1..0....0..0..1....0..0..0....0..1..0....0..0..1....0..0..1 ..0..1..1....1..0..0....1..0..0....0..0..0....1..0..0....1..1..0....1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Crossrefs
Cf. A188747.
Comments