A230181 Number of nX5 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j)

15, 825, 44487, 2432241, 133265847, 7303192425, 400233701367, 21933865129257, 1202033948127351, 65874647188725513, 3610105315787830647, 197843342593747917321, 10842339706191376541559, 594188961646805379691401

Offset

1,1

Comments

Column 5 of A230184

Links

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

Formula

Empirical: a(n) = 63*a(n-1) -464*a(n-2) +800*a(n-3) +500*a(n-4) -124*a(n-5) -64*a(n-6) for n>8

Example

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

Crossrefs

Sequence in context: A183821 A301312 A374581 * A187803 A261828 A205432

Adjacent sequences: A230178 A230179 A230180 * A230182 A230183 A230184

Keyword

nonn

Author

R. H. Hardin, Oct 11 2013

Status

approved