A206395 Number of nX7 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.

51, 8404, 96632, 1343560, 18574298, 268956972, 3889732730, 56960076094, 835640037768, 12318524591500

Offset: 1

Author

R. H. Hardin Feb 07 2012

Keywords

• nonn

Comments

Column 7 of A206396

Examples

			Some solutions for n=4
..0..1..2..0..1..2..3....0..1..2..3..4..0..1....0..1..2..3..0..1..2
..2..3..4..5..3..4..5....2..3..5..0..1..2..4....2..3..4..1..5..3..4
..4..5..1..2..0..1..2....5..4..1..2..5..3..0....4..5..0..2..4..0..5
..0..2..3..4..5..3..4....0..2..3..4..0..1..5....0..1..3..5..1..2..3