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 A205055 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock equal to the number in all its horizontal and vertical neighbors 9
 81, 243, 243, 803, 889, 803, 2892, 4171, 4171, 2892, 10948, 19151, 23720, 19151, 10948, 43261, 100761, 182720, 182720, 100761, 43261, 174282, 515720, 1280452, 1887956, 1280452, 515720, 174282, 709813, 2789316, 10523741, 24394205, 24394205 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....81......243.......803........2892.........10948...........43261 ....243......889......4171.......19151........100761..........515720 ....803.....4171.....23720......182720.......1280452........10523741 ...2892....19151....182720.....1887956......24394205.......274053256 ..10948...100761...1280452....24394205.....431904792......9058296062 ..43261...515720..10523741...274053256....9058296062....262607365879 .174282..2789316..76554719..3582717434..163545596549...8904229041644 .709813.14729453.627391509.40560306665.3436199624978.259548109909200 LINKS R. H. Hardin, Table of n, a(n) for n = 1..480 EXAMPLE Some solutions for n=4 k=3 ..1..2..0..2....2..1..2..0....0..1..2..1....1..2..2..0....2..0..1..1 ..2..1..2..1....1..2..1..2....2..0..1..2....0..0..1..1....1..2..0..2 ..0..2..0..2....0..1..2..0....1..2..1..2....1..0..0..1....0..1..2..0 ..1..0..2..1....2..0..1..2....2..0..2..0....1..1..0..0....1..0..1..2 ..1..2..0..2....0..1..0..1....1..2..0..1....0..1..1..0....2..1..0..2 CROSSREFS Sequence in context: A075730 A184068 A211690 * A335843 A255625 A205048 Adjacent sequences:  A205052 A205053 A205054 * A205056 A205057 A205058 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 21 2012 STATUS approved

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Last modified November 24 03:39 EST 2020. Contains 338607 sequences. (Running on oeis4.)