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A221450
Hilltop maps: number of 5Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..1 5Xn array
1
1, 355, 9829, 230845, 6415089, 177320895, 4832005625, 131942833529, 3606055280657, 98529266203659, 2692051448713949, 73554857285973785, 2009736562063323785, 54911874439751493035, 1500353181134236949205
OFFSET
1,2
COMMENTS
Row 5 of A221446
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1....0..1..0....1..1..0....1..0..1....1..1..0....0..1..0....1..1..1
..1..1..0....0..0..0....0..1..0....0..1..0....1..1..0....0..1..1....1..0..0
..1..1..0....1..1..1....0..1..0....0..0..1....1..1..1....0..0..0....1..1..1
..1..1..1....0..1..0....1..1..1....1..1..1....0..0..1....1..1..0....1..1..1
..1..0..1....0..0..1....1..0..1....0..0..1....1..1..0....1..0..1....1..1..1
CROSSREFS
Sequence in context: A250157 A293563 A241960 * A232298 A108375 A237466
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 17 2013
STATUS
approved