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 A207048 Number of (n+1) X 7 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases. 1
 13386, 4722, 3408, 4836, 7584, 11712, 19200, 30528, 48096, 78744, 125184, 196320, 316128, 500832, 785280, 1264512, 2003328, 3141120, 5058048, 8013312, 12564480, 20232192, 32053248, 50257920, 80928768, 128212992, 201031680, 323715072 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A207050. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 4*a(n-3) n > 14. EXAMPLE Some solutions for n=4 ..1..2..2..1..1..1..2....0..2..1..1..2..2..2....1..0..2..2..0..0..0 ..1..2..2..2..1..1..1....0..0..1..1..1..2..2....1..1..2..2..2..0..0 ..1..1..2..2..2..1..1....0..0..0..1..1..1..2....1..1..1..2..2..2..0 ..1..1..1..2..2..2..0....1..0..0..0..1..1..1....2..1..1..1..2..2..2 ..0..1..1..1..2..2..2....1..1..0..0..0..1..1....2..0..1..1..1..2..2 CROSSREFS Cf. A207050. Sequence in context: A235297 A252240 A220060 * A083598 A238295 A291913 Adjacent sequences: A207045 A207046 A207047 * A207049 A207050 A207051 KEYWORD nonn AUTHOR R. H. Hardin Feb 14 2012 STATUS approved

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Last modified August 9 23:54 EDT 2024. Contains 375044 sequences. (Running on oeis4.)