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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A221446

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

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

Adjacent sequences:  A221447 A221448 A221449 * A221451 A221452 A221453

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 17 2013

STATUS

approved

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Last modified May 19 13:24 EDT 2022. Contains 353833 sequences. (Running on oeis4.)