A203973 Number of n X 6 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by 0 1 to the left or above.

24, 1488, 136243, 10443081, 817293052, 64449537503, 5061444598545, 397834775050740, 31270867431167972, 2457732853480046455, 193174081619843169146, 15183059890219083012785, 1193352525118970918791175

Offset: 1

Author

R. H. Hardin, Jan 08 2012

Keywords

• nonn

Comments

Column 6 of A203975.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Cf. A203975.