A218423 Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..1 nX5 array

17, 737, 20793, 629659, 19003811, 572765605, 17270172871, 520703946625, 15699497444771, 473348740584743, 14271727157207365, 430300515162577777, 12973799949967137925, 391167286570698841921, 11793911323529489973393

Offset

1,1

Comments

Column 5 of A218426

Links

R. H. Hardin, Table of n, a(n) for n = 1..64

Example

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

Crossrefs

Sequence in context: A308696 A308594 A308570 * A171766 A283579 A294757

Adjacent sequences: A218420 A218421 A218422 * A218424 A218425 A218426

Keyword

nonn

Author

R. H. Hardin Oct 28 2012

Status

approved