A231582 Number of nX3 0..3 arrays with no element less than a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors

16, 124, 2352, 32650, 381076, 5618444, 82479418, 1142396851, 16061107556, 231334122108, 3304782498636, 47013530431780, 672506204379038, 9632530214937964, 137769361857359282, 1971267194035271726

Offset

1,1

Comments

Column 3 of A231586

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 72

Formula

Empirical recurrence of order 72 (see link above)

Example

Some solutions for n=4
..1..0..0....3..0..1....1..0..3....0..2..3....2..2..1....2..3..1....1..1..1
..0..0..3....0..0..0....0..0..0....0..0..2....1..0..0....2..1..1....2..1..1
..0..3..0....0..0..0....3..0..1....0..0..3....0..0..0....0..0..3....3..1..1
..2..0..0....3..3..3....0..0..0....0..1..2....0..3..0....0..0..0....2..1..1

Crossrefs

Sequence in context: A060633 A125353 A126511 * A067442 A000485 A264625

Adjacent sequences: A231579 A231580 A231581 * A231583 A231584 A231585

Keyword

nonn

Author

R. H. Hardin, Nov 11 2013

Status

approved