A218351 Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 nX5 array.

17, 547, 14811, 401253, 10982565, 300126903, 8199377227, 224032447213, 6121258910011, 167250519310183, 4569773233045519, 124859601874166153, 3411530022687206815, 93212992000176142919, 2546851962811003392065

Offset: 1

Author

R. H. Hardin Oct 26 2012

Keywords

• nonn

Comments

Column 5 of A218354

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..51