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 A254743 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically 9
 512, 2848, 2848, 13504, 19782, 13504, 62579, 130554, 130554, 62579, 281213, 795666, 1209260, 795666, 281213, 1223367, 4613180, 9683835, 9683835, 4613180, 1223367, 5203324, 26334567, 74915756, 100974022, 74915756, 26334567, 5203324, 21804750 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......512......2848.......13504.........62579.........281213..........1223367 .....2848.....19782......130554........795666........4613180.........26334567 ....13504....130554.....1209260.......9683835.......74915756........573664291 ....62579....795666.....9683835.....100974022.....1036785574......10560688146 ...281213...4613180....74915756....1036785574....14206747097.....194159814879 ..1223367..26334567...573664291...10560688146...194159814879....3580969060985 ..5203324.148992766..4337693061..106118585579..2619450227481...65010218627788 .21804750.835291656.32485851354.1056697890479.35003055321356.1168401476128817 LINKS R. H. Hardin, Table of n, a(n) for n = 1..219 FORMULA Empirical for column k: k=1: [linear recurrence of order 16] for n>20 k=2: [order 57] for n>62 EXAMPLE Some solutions for n=2 k=4 ..0..0..1..1..0..1....0..0..1..0..0..1....0..0..1..0..0..1....0..0..1..1..1..0 ..1..0..0..0..0..1....0..0..0..0..1..0....1..0..0..1..0..0....1..0..0..0..0..0 ..0..0..0..0..0..1....0..0..0..0..1..0....1..0..0..1..1..1....0..0..0..1..1..0 ..0..0..0..1..1..0....0..0..1..0..1..1....0..0..1..1..1..0....0..0..0..1..1..0 CROSSREFS Sequence in context: A254253 A254915 A257154 * A254736 A254586 A254361 Adjacent sequences: A254740 A254741 A254742 * A254744 A254745 A254746 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 06 2015 STATUS approved

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Last modified September 13 22:05 EDT 2024. Contains 375910 sequences. (Running on oeis4.)