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 A198537 Number of 2nX6 0..4 arrays with values 0..4 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors 0
 67442, 163506788110, 397739142470871040, 967523967174230258261646, 2353559236762243709633958950262 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A198538 LINKS EXAMPLE Some solutions for n=2 ..0..0..0..1..0..2....0..0..0..1..2..1....0..0..0..1..2..3....0..0..0..1..2..0 ..0..1..0..3..4..1....0..1..0..2..3..0....0..1..0..2..4..2....0..1..0..3..4..3 ..0..0..0..1..0..4....0..0..0..3..1..4....0..0..0..1..2..0....0..0..0..1..2..1 ..1..2..1..4..1..2....1..2..1..2..4..2....1..2..1..3..4..1....1..2..1..3..0..2 CROSSREFS Sequence in context: A043591 A022256 A225560 * A101697 A224655 A104948 Adjacent sequences:  A198534 A198535 A198536 * A198538 A198539 A198540 KEYWORD nonn AUTHOR R. H. Hardin Oct 26 2011 STATUS approved

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Last modified May 18 19:42 EDT 2013. Contains 225426 sequences.