A230272 Number of nX5 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

0, 30, 2318, 115630, 5524854, 261026756, 12303458948, 580318201510, 27360277625336, 1290051189888410, 60825460594828982, 2867902503350552074, 135220715263225157514, 6375614702009353176064, 300608248114662965834544

Offset

1,2

Comments

Column 5 of A230275

Links

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

Example

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

Crossrefs

Sequence in context: A301377 A054647 A061162 * A230612 A138916 A266041

Adjacent sequences: A230269 A230270 A230271 * A230273 A230274 A230275

Keyword

nonn

Author

R. H. Hardin, Oct 14 2013

Status

approved