A231832 Number of n X n 0..3 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors

4, 50, 4508, 3477361, 24188209253, 1254045703514371, 474822731471136470440, 1348354196926200275839295164, 29381088329574641941731352369292061, 4908846924825797705595322427394823109676747

Offset

1,1

Comments

Diagonal of A231839

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=3
..1..1..3....3..2..2....1..1..0....3..1..0....2..2..2....0..0..1....2..2..1
..1..1..1....2..1..1....0..0..1....0..0..0....2..3..1....0..0..2....1..1..3
..1..1..2....1..1..2....0..3..3....0..2..2....0..0..0....0..3..3....2..3..3

Crossrefs

Sequence in context: A026865 A016078 A327229 * A193157 A235604 A221477

Adjacent sequences: A231829 A231830 A231831 * A231833 A231834 A231835

Keyword

nonn

Author

R. H. Hardin, Nov 14 2013

Status

approved