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A218598
Hilltop maps: number of 7Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 7Xn array
1
1, 11011, 1782855, 227451273, 28782653703, 3663996495065, 467122877883141, 59564772010560679, 7594747878648617511, 968342656073731373915, 123465264778955860526245, 15742032324396343036237669
OFFSET
1,2
COMMENTS
Row 7 of A218592
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..0..0....1..0..0....1..0..0....1..0..0....1..1..1....1..0..0....1..1..0
..1..1..0....0..0..1....1..1..0....1..0..0....0..0..0....1..1..0....0..1..1
..0..0..0....0..1..1....1..0..1....1..1..1....0..1..0....0..0..1....1..1..0
..1..0..1....0..1..0....1..1..1....0..1..0....1..0..0....1..1..0....0..0..0
..1..1..0....1..1..1....1..0..1....1..0..0....0..0..0....1..1..0....1..0..0
..1..1..0....1..1..0....0..0..1....0..0..1....0..1..1....0..0..1....1..1..1
CROSSREFS
Sequence in context: A181319 A267811 A267934 * A096930 A233720 A368697
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 03 2012
STATUS
approved