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 A205353 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..2 introduced in row major order 0
 14, 275, 12866, 1329947, 323378690, 194089073306, 288041668868162, 1037162852168747729 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A205361 LINKS EXAMPLE Some solutions for n=4 ..0..0..1..0..0....0..1..1..1..1....0..0..1..2..0....0..1..1..2..1 ..0..1..2..1..0....1..1..2..1..2....0..1..2..2..2....1..1..0..1..0 ..0..0..1..0..2....0..1..1..1..1....0..0..1..2..0....2..1..1..2..1 ..1..0..0..2..1....0..0..1..0..1....0..1..1..1..2....0..2..1..1..1 ..1..1..0..0..2....0..1..2..1..1....0..0..1..2..2....0..0..2..1..2 CROSSREFS Sequence in context: A001820 A211900 A215544 * A279113 A291099 A053101 Adjacent sequences: A205350 A205351 A205352 * A205354 A205355 A205356 KEYWORD nonn AUTHOR R. H. Hardin Jan 26 2012 STATUS approved

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Last modified March 21 13:02 EDT 2023. Contains 361402 sequences. (Running on oeis4.)