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A218232 Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..2 nX7 array 1
97, 15327, 2029849, 258892017, 33110750073, 4236306950287, 542011629493301, 69347116728197085, 8872536875936240705, 1135186578412743140189, 145240149217754781511971, 18582584875909724340490255 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A218233

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A057011 A218591 A218205 * A219062 A218318 A233426

Adjacent sequences:  A218229 A218230 A218231 * A218233 A218234 A218235

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 24 2012

STATUS

approved

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Last modified March 4 04:39 EST 2021. Contains 341779 sequences. (Running on oeis4.)