A198484 Number of 2nX6 0..3 arrays with values 0..3 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors

10072, 579476701, 33408897045776, 1926147852876420067, 111049673372896355573468, 6402431748862885892818595024, 369124294364655578368535852718606

Offset

1,1

Comments

Column 3 of A198485

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

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

Crossrefs

Sequence in context: A187113 A023356 A292176 * A252200 A234773 A348698

Adjacent sequences: A198481 A198482 A198483 * A198485 A198486 A198487

Keyword

nonn

Author

R. H. Hardin Oct 25 2011

Status

approved