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 A252325 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 or 6 4
 12726, 94578, 94578, 723110, 797008, 723110, 5618854, 7391236, 7391236, 5618854, 44203794, 70847984, 96651850, 70847984, 44203794, 348767254, 727750076, 1374911658, 1374911658, 727750076, 348767254, 2755444362, 7593834452 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......12726.......94578.......723110......5618854.....44203794......348767254 .......94578......797008......7391236.....70847984....727750076.....7593834452 ......723110.....7391236.....96651850...1374911658..21966758822...361804339326 .....5618854....70847984...1374911658..32293301118.855441764490.23377332622310 ....44203794...727750076..21966758822.855441764490 ...348767254..7593834452.361804339326 ..2755444362.79675585116 .21800265534 LINKS R. H. Hardin, Table of n, a(n) for n = 1..40 EXAMPLE Some solutions for n=1 k=4 ..0..0..0..0..2..3....0..0..0..0..0..0....0..0..0..0..2..2....0..0..0..0..0..0 ..0..2..0..2..0..2....0..2..0..0..2..2....2..0..0..0..0..2....3..3..2..0..0..0 ..0..0..0..2..2..0....0..0..0..2..0..2....0..2..2..0..0..1....1..2..2..0..0..0 CROSSREFS Sequence in context: A288355 A163573 A236882 * A252322 A254507 A254514 Adjacent sequences: A252322 A252323 A252324 * A252326 A252327 A252328 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Dec 16 2014 STATUS approved

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Last modified March 21 16:33 EDT 2023. Contains 361408 sequences. (Running on oeis4.)