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A218231 Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..2 nX6 array 1
49, 3839, 253825, 16187585, 1035156707, 66220959971, 4236306950287, 271005420795533, 17336767848485223, 1109068372629093745, 70949364820791381147, 4538775509557133929359, 290354722371972160509315 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A218233

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..72

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A248167 A218590 A218204 * A219061 A218317 A283229

Adjacent sequences:  A218228 A218229 A218230 * A218232 A218233 A218234

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 24 2012

STATUS

approved

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Last modified May 26 13:17 EDT 2022. Contains 354092 sequences. (Running on oeis4.)