A218597 - OEIS

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A218597

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..2 6Xn array

1, 2849, 224643, 14309253, 906390787, 57707873919, 3679019688741, 234587060833513, 14956980852954693, 953622639363956241, 60800788454758533673, 3876520842651206103055, 247158250520323924145773

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

OFFSET

1,2

COMMENTS

Row 6 of A218592

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..74

EXAMPLE

Some solutions for n=3

..0..0..0....0..1..0....0..0..0....0..1..0....0..1..1....0..1..1....0..0..1

..1..1..0....1..0..1....1..0..1....1..0..1....0..1..0....0..1..1....1..1..1

..1..1..1....0..0..1....1..1..1....0..1..1....1..0..1....1..1..1....1..1..0