A200798 Number of nX5 0..3 arrays with values 0..3 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.

51, 40148, 34679839, 30147154218, 26207146328784, 22781978610167987, 19804473216531794553, 17216114684815070366422, 14966043352402318383229010, 13010046560219625329665338289, 11309690043874236949034566968117

Offset: 1

Author

R. H. Hardin Nov 22 2011

Keywords

• nonn

Comments

Column 5 of A200801

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..155