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 A232071 Number of (n+1)X(3+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero 1
 46, 520, 6624, 82996, 1043172, 13105012, 164650280, 2068621706, 25989674166, 326528021922, 4102419848778, 51541819920986, 647559075731254, 8135777066019200, 102215953652767856, 1284216749830662044 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A232076 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 10*a(n-1) +33*a(n-2) +6*a(n-3) -176*a(n-4) -300*a(n-5) -15*a(n-6) -76*a(n-7) +79*a(n-8) +72*a(n-9) -16*a(n-10) EXAMPLE Some solutions for n=4 ..0..1..1..1....0..1..1..1....0..0..1..0....0..0..0..0....0..0..1..1 ..1..0..1..1....1..0..0..0....1..1..0..1....0..1..0..0....0..1..1..1 ..0..0..0..1....0..1..1..1....1..0..1..1....1..1..0..0....1..1..0..0 ..0..1..1..0....0..1..0..0....1..1..1..0....1..1..0..0....0..1..1..1 ..1..1..0..1....1..0..0..0....1..1..0..0....1..0..0..0....0..0..0..1 CROSSREFS Sequence in context: A160285 A111304 A055751 * A156892 A224258 A223914 Adjacent sequences: A232068 A232069 A232070 * A232072 A232073 A232074 KEYWORD nonn AUTHOR R. H. Hardin, Nov 17 2013 STATUS approved

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Last modified April 14 10:04 EDT 2024. Contains 371657 sequences. (Running on oeis4.)