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 A269287 Number of nX6 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three no more than once. 1
 2592, 1363572, 544118148, 193446959076, 64538382287988, 20680187784811380, 6444304707617709156, 1967513283560471350788, 591384314583314302090068, 175574678705837994574453140, 51607712999525045688100012356 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A269289. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 564*a(n-1) -87462*a(n-2) +2257724*a(n-3) -21169617*a(n-4) +76236552*a(n-5) -92236816*a(n-6) for n>7 EXAMPLE Some solutions for n=2 ..0..0..2..3..1..0. .0..0..0..3..3..2. .0..0..0..0..1..0. .0..0..1..2..0..1 ..2..2..3..1..1..1. .1..0..2..2..0..0. .1..2..2..0..2..2. .1..1..3..1..3..2 CROSSREFS Cf. A269289. Sequence in context: A269107 A035773 A107569 * A204774 A251899 A236598 Adjacent sequences:  A269284 A269285 A269286 * A269288 A269289 A269290 KEYWORD nonn AUTHOR R. H. Hardin, Feb 21 2016 STATUS approved

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Last modified August 1 16:01 EDT 2021. Contains 346393 sequences. (Running on oeis4.)