A231084 Number of 5Xn 0..2 arrays x(i,j) with each element horizontally, diagonally 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, 34, 5098, 71944, 18655220, 1782634608, 190102522528, 24141123135256, 2762980681734360, 330052108492665912, 39469584963572801752

Offset

1,2

Comments

Row 5 of A231080

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A232900 A209943 A187708 * A291976 A212035 A292750

Adjacent sequences: A231081 A231082 A231083 * A231085 A231086 A231087

Keyword

nonn

Author

R. H. Hardin, Nov 03 2013

Status

approved