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A218815 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..3 6Xn array 1
1, 3551, 245509, 16252713, 1039771513, 66531801953, 4257699787069, 272481107247773, 17438263706240211, 1116016197551446895, 71422966710588065133, 4570937163077667987697, 292531483564098288209289 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A218810
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..1..1....0..0..0....0..0..0....0..1..0....0..0..1....0..1..1
..0..1..0....0..1..0....1..1..1....1..1..1....1..1..0....0..0..1....0..0..1
..1..1..1....0..1..0....0..0..0....0..0..0....1..0..0....0..1..0....1..1..0
..0..1..0....0..0..0....1..0..0....0..1..0....0..1..0....1..0..1....0..1..0
..1..0..1....0..0..0....1..0..0....0..1..0....1..0..1....1..0..1....1..0..0
..0..1..1....0..1..0....1..0..0....0..0..0....1..0..1....1..1..0....1..0..0
CROSSREFS
Sequence in context: A253657 A251040 A253727 * A248855 A151810 A083955
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 06 2012
STATUS
approved

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Last modified March 4 10:39 EST 2024. Contains 370528 sequences. (Running on oeis4.)