A230336 Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

0, 56010, 46237080, 47762574418, 49266883333526, 50711260887195062, 52211092034409972862, 53754780288394583334632, 55344031582184062528770162, 56980280720646281897172731146, 58664905061647640259968339176114

Offset

1,2

Comments

Column 7 of A230337

Links

R. H. Hardin, Table of n, a(n) for n = 1..75

Example

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

Crossrefs

Sequence in context: A254815 A229436 A022224 * A252320 A252020 A360188

Adjacent sequences: A230333 A230334 A230335 * A230337 A230338 A230339

Keyword

nonn

Author

R. H. Hardin, Oct 16 2013

Status

approved