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A219067 Hilltop maps: number of 6Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..2 6Xn array 1
1, 3697, 256849, 16520553, 1054361217, 67441480753, 4315297469409, 276118155837273, 17667523952980289, 1130460774142233681, 72332806348866425545, 4628232467782206332137, 296138599053919461336353 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A219063

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..32

EXAMPLE

Some solutions for n=3

..0..1..0....0..0..1....0..0..1....0..1..0....0..0..1....0..0..1....0..0..0

..1..1..0....0..0..1....0..1..0....0..0..1....1..0..0....1..1..1....1..0..0

..0..0..1....1..0..0....0..0..1....0..0..0....0..1..1....0..0..0....1..0..1

..0..0..1....1..1..1....0..0..1....1..1..0....1..0..0....0..1..0....1..1..1

..0..1..1....1..1..1....0..1..0....1..0..0....1..1..1....0..0..1....1..1..1

..1..1..1....0..1..1....1..0..1....1..0..0....1..1..0....1..0..0....0..1..0

CROSSREFS

Sequence in context: A186198 A188155 A061660 * A035780 A108004 A176386

Adjacent sequences:  A219064 A219065 A219066 * A219068 A219069 A219070

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 11 2012

STATUS

approved

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Last modified November 13 20:57 EST 2019. Contains 329106 sequences. (Running on oeis4.)