A230803 Number of nX5 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, and upper left element zero

0, 34, 298, 10448, 243746, 6832578, 180981600, 4943014834, 133700619938, 3636674702224, 98739423076418, 2683583739212562, 72911555860683184, 1981321757121171674, 53837913037442724742, 1462968311880623328120

Offset

1,2

Comments

Column 5 of A230805

Links

R. H. Hardin, Table of n, a(n) for n = 1..176

Example

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

Crossrefs

Sequence in context: A027006 A156531 A220565 * A209808 A160146 A101092

Adjacent sequences: A230800 A230801 A230802 * A230804 A230805 A230806

Keyword

nonn

Author

R. H. Hardin, Oct 30 2013

Status

approved