A231028 Number of nX5 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 at least one element with value (x(i,j)-1) mod 3, and upper left element zero

0, 344, 12400, 1444702, 124446770, 11542542126, 1050541512334, 96084401660280, 8776913226846168, 801999453871350642, 73277218848409360596, 6695355497136560389160, 611752553994156925696252

Offset

1,2

Comments

Column 5 of A231031

Links

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

Example

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

Crossrefs

Sequence in context: A115221 A065499 A183673 * A185746 A202904 A086028

Adjacent sequences: A231025 A231026 A231027 * A231029 A231030 A231031

Keyword

nonn

Author

R. H. Hardin, Nov 03 2013

Status

approved