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A218205 Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..2 nX7 array 1
97, 14719, 1945103, 246985085, 31459153095, 4010296932181, 511326127735795, 65195959047122215, 8312603150623482535, 1059871102752817956941, 135135389793386385932601, 17229996080059877345670629 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A218206

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A302330 A057011 A218591 * A218232 A219062 A218318

Adjacent sequences:  A218202 A218203 A218204 * A218206 A218207 A218208

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 23 2012

STATUS

approved

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Last modified May 18 01:52 EDT 2022. Contains 353779 sequences. (Running on oeis4.)