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 A205431 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the number of equal 2X2 subblock diagonal pairs and equal antidiagonal pairs differing from each horizontal or vertical neighbor, and new values 0..3 introduced in row major order 9
 15, 102, 102, 870, 1662, 870, 7566, 29022, 29022, 7566, 68342, 513038, 1093244, 513038, 68342, 609086, 9083342, 40007284, 40007284, 9083342, 609086, 5514982, 160862398, 1514539540, 3163254256, 1514539540, 160862398, 5514982, 49362414 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......15.........102............870.............7566............68342 ......102........1662..........29022...........513038..........9083342 ......870.......29022........1093244.........40007284.......1514539540 .....7566......513038.......40007284.......3163254256.....250194674424 ....68342.....9083342.....1514539540.....250194674424...42782998259850 ...609086...160862398....55445403092...19790583241516.7075689720463554 ..5514982..2848901694..2098930772556.1565428649231412 .49362414.50454831598.76841262200636 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=4 k=3 ..0..0..0..1....0..0..0..0....0..1..1..2....0..0..0..0....0..0..1..1 ..0..1..1..2....1..0..0..1....0..2..1..2....1..1..0..0....1..1..2..2 ..2..1..0..3....2..3..0..1....0..0..3..1....2..1..2..0....3..1..3..2 ..1..0..1..0....2..2..1..0....0..0..0..0....3..3..1..1....0..0..1..0 ..0..1..1..2....0..0..2..3....0..1..2..0....2..3..1..3....3..0..1..1 CROSSREFS Sequence in context: A163717 A111370 A093739 * A085465 A205424 A219624 Adjacent sequences:  A205428 A205429 A205430 * A205432 A205433 A205434 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 27 2012 STATUS approved

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Last modified July 6 11:37 EDT 2022. Contains 355110 sequences. (Running on oeis4.)