A216029 Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an nX6 array with new integer colors introduced in row major order.

2, 42, 1534, 167130, 30312074, 10311562327, 4761748786964, 3439948243132701

Offset: 1

Author

R. H. Hardin Aug 30 2012

Keywords

• nonn

Comments

Column 6 of A216031

Examples

			Some solutions for n=4
..x..0..x..1..x..2....x..0..x..1..x..0....x..0..x..1..x..2....x..0..x..1..x..2
..0..x..3..x..4..x....2..x..3..x..4..x....1..x..2..x..3..x....1..x..3..x..0..x
..x..3..x..5..x..0....x..3..x..5..x..6....x..4..x..0..x..5....x..4..x..0..x..4
..5..x..0..x..2..x....3..x..4..x..7..x....5..x..1..x..5..x....2..x..5..x..4..x