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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
OFFSET
1,1
COMMENTS
Column 7 of A218233
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 24 2012
STATUS
approved