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 A252879 Number of (n+2)X(3+2) 0..2 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order 1
 28474, 206314, 1769486, 16537346, 160464987, 1568328517, 15405629778, 151688062643, 1495069902511, 14743726913679, 145437557024706, 1434820721218962, 14156257991743031, 139673301663902899 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A252882 LINKS R. H. Hardin, Table of n, a(n) for n = 1..108 EXAMPLE Some solutions for n=1 ..0..1..0..1..1....0..1..2..1..0....0..0..1..2..1....0..0..1..0..2 ..0..1..1..0..1....0..2..2..1..2....0..1..2..2..1....1..0..2..0..2 ..0..2..1..0..1....1..1..0..1..2....0..1..1..2..1....1..2..2..0..0 CROSSREFS Sequence in context: A236595 A083611 A083612 * A231417 A145683 A205890 Adjacent sequences: A252876 A252877 A252878 * A252880 A252881 A252882 KEYWORD nonn AUTHOR R. H. Hardin, Dec 24 2014 STATUS approved

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Last modified May 30 15:08 EDT 2024. Contains 372968 sequences. (Running on oeis4.)