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 A269274 Number of nX6 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once. 1
 1620, 1104264, 474819408, 174924572760, 59587625651904, 19356924219624936, 6090616046325570480, 1872977567099580289656, 566116324214731470647712, 168820920854627863029497352, 49802534018235803452666079376 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A269276. 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..1..0..2..1. .0..0..0..2..3..1. .0..0..2..2..3..1. .0..0..1..2..0..2 ..2..0..2..0..1..3. .2..0..3..3..1..3. .1..0..2..0..0..0. .1..1..0..1..3..2 CROSSREFS Cf. A269276. Sequence in context: A269150 A269212 A269095 * A020418 A347039 A224722 Adjacent sequences: A269271 A269272 A269273 * A269275 A269276 A269277 KEYWORD nonn AUTHOR R. H. Hardin, Feb 21 2016 STATUS approved

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Last modified March 29 06:37 EDT 2023. Contains 361596 sequences. (Running on oeis4.)