A230524 Number of nX6 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

0, 32832, 13230788, 6768331956, 3550368078592, 1844551938024312, 959021374133908722, 498682290491203324876, 259300538768422491856738, 134829114660746538770234406, 70107462792963736083322209658

Offset

1,2

Comments

Column 6 of A230526

Links

R. H. Hardin, Table of n, a(n) for n = 1..199

Example

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

Crossrefs

Sequence in context: A045061 A183889 A272892 * A168666 A353019 A170780

Adjacent sequences: A230521 A230522 A230523 * A230525 A230526 A230527

Keyword

nonn

Author

R. H. Hardin, Oct 22 2013

Status

approved