A221070 Sum of neighbor maps: number of n X 6 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their king-move neighbors in a random 0..3 n X 6 array.

64, 476, 262144, 16777216, 811440640, 68719476736, 4398046511104, 275046044778496, 18014398509481984, 1152921504606846976, 73666094089946267648

Offset: 1

Author

R. H. Hardin, Dec 31 2012

Keywords

• nonn

Comments

Column 6 of A221072.

Examples

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

Crossrefs

Cf. A221072.