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A221451 Hilltop maps: number of 6Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..1 6Xn array 1
1, 1201, 65569, 2897357, 157933741, 8569227073, 456064257841, 24333809830873, 1300168164767193, 69442977248777937, 3708745793506329473, 198080464024573391557, 10579291552464655635125, 565028486364173641870457 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A221446
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0....1..1..0....1..0..0....0..1..1....1..1..1....0..1..0....0..1..1
..0..1..1....1..0..0....0..1..0....0..1..1....1..1..1....1..1..0....1..1..0
..1..1..1....0..1..0....0..0..1....0..1..1....0..0..1....0..1..1....1..1..0
..0..1..0....1..0..1....1..1..1....1..1..1....1..0..1....1..1..1....1..1..1
..1..1..0....1..0..1....1..0..1....0..0..0....1..1..1....1..1..0....1..1..1
..1..0..1....0..1..1....0..1..1....1..1..0....0..0..1....1..0..1....0..1..0
CROSSREFS
Sequence in context: A020390 A156620 A214116 * A133142 A068534 A252340
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 17 2013
STATUS
approved

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Last modified June 16 07:19 EDT 2024. Contains 373423 sequences. (Running on oeis4.)