A230396 Number of nX5 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero

0, 2, 842, 88580, 6605632, 501998702, 36506815072, 2615818813066, 188195658264154, 13518798637898886, 970332017010857376, 69648203212678610278, 4999249684402345247530, 358823855095471734807470

Offset

1,2

Comments

Column 5 of A230398

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

Some solutions for n=4
..0..1..2..3..4....0..1..0..4..1....0..4..3..2..1....0..1..3..4..3
..2..0..4..1..0....4..2..0..1..2....1..1..2..2..1....3..2..1..0..4
..3..4..3..2..4....2..3..4..4..3....2..0..1..3..0....4..1..1..4..1
..2..3..0..1..3....1..2..1..0..4....3..4..0..4..4....0..1..2..3..2

Crossrefs

Sequence in context: A109555 A214898 A332182 * A028485 A034227 A324589

Adjacent sequences: A230393 A230394 A230395 * A230397 A230398 A230399

Keyword

nonn

Author

R. H. Hardin, Oct 18 2013

Status

approved