A240516 Number of n X 5 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order.

8, 21, 73, 326, 1376, 6205, 28942, 135093, 636475, 3024792, 14429369, 69010353, 330906118, 1589431389, 7642628408, 36779710534, 177110221193, 853219818189, 4111568990816, 19817506062480, 95533854083563, 460587995304966

Offset: 1

Author

R. H. Hardin, Apr 06 2014

Keywords

• nonn

Comments

Column 5 of A240519.

Examples

			Some solutions for n=4
..0..1..1..0..1....0..1..1..1..0....0..0..0..1..0....0..1..0..1..0
..1..0..0..0..0....1..0..1..0..0....1..0..1..0..1....1..1..1..0..1
..0..1..0..1..1....0..1..0..1..0....0..1..0..0..0....0..1..0..1..1
..1..0..1..0..0....1..0..1..1..1....1..1..1..0..1....1..0..1..0..1
		

Links

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

Crossrefs

Cf. A240519.