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A232320 Number of (4+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero 1
34, 551, 10409, 231454, 5142441, 113293694, 2499669158, 55147236337, 1216656297612, 26841719357568, 592179351445235, 13064599837184618, 288229857559634498, 6358897503996161509, 140289343114550595132 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A232316
LINKS
FORMULA
Empirical recurrence of order 78 (see link above)
EXAMPLE
Some.solutions.for.n=3
..0..0..0..0....0..0..1..0....0..0..0..0....0..0..1..1....0..0..0..1
..0..1..0..0....0..1..0..0....1..1..1..1....0..0..1..1....0..0..1..0
..1..0..0..0....1..0..0..1....1..1..1..0....0..1..1..0....0..1..0..0
..1..1..1..1....0..1..1..0....0..0..0..1....1..0..0..1....1..1..0..1
..1..1..1..1....1..0..0..0....1..1..1..1....0..0..1..1....1..0..1..1
CROSSREFS
Sequence in context: A020929 A160279 A230332 * A133720 A010950 A330412
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2013
STATUS
approved

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Last modified April 16 14:51 EDT 2024. Contains 371749 sequences. (Running on oeis4.)