A231845 Number of 7Xn 0..3 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.
16384, 2771101, 1792092360, 1140658285204, 899426070636904, 667414220139740867, 474822731471136470440, 334792455203826918639864, 237921869830701207980327586, 170048147255195659833743734040
Offset: 1
Keywords
Examples
Some solutions for n=2 ..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0 ..0..0....2..2....0..0....0..0....2..0....0..2....0..0....0..0....2..0....2..2 ..1..2....2..0....2..2....0..0....0..0....0..0....2..1....0..3....0..0....2..2 ..2..3....0..0....3..1....2..3....2..2....0..2....1..3....3..3....1..0....3..2 ..3..0....0..1....1..3....1..1....3..1....3..1....3..2....0..0....0..3....1..0 ..0..0....2..2....2..2....0..0....1..2....0..0....2..3....3..2....3..2....0..2 ..2..3....0..0....0..0....0..0....2..3....0..0....3..3....0..0....0..0....1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..19
Comments