A230967 Number of n X 5 0..3 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally 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, 1732, 220970, 66622532, 20816992724, 6479894318198, 2012129115093308, 626306050264214612, 194986475188899358816, 60695893045948486447450, 18894590354461901315111820, 5881924926873718865927435500

Offset

1,2

Comments

Column 5 of A230968.

Links

R. H. Hardin, Table of n, a(n) for n = 1..38

Example

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

Crossrefs

Cf. A230968.

Sequence in context: A252454 A256807 A008745 * A179914 A113701 A283385

Adjacent sequences: A230964 A230965 A230966 * A230968 A230969 A230970

Keyword

nonn

Author

R. H. Hardin, Nov 02 2013

Status

approved