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 A186825 T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having sum 4 or 5 10
 126, 606, 606, 2904, 3988, 2904, 14229, 25808, 25808, 14229, 70767, 173121, 222632, 173121, 70767, 351549, 1190637, 2009622, 2009622, 1190637, 351549, 1750896, 8178097, 18829218, 24581099, 18829218, 8178097, 1750896, 8730234, 56422648 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......126.........606..........2904...........14229.............70767 .......606........3988.........25808..........173121...........1190637 ......2904.......25808........222632.........2009622..........18829218 .....14229......173121.......2009622........24581099.........315843055 .....70767.....1190637......18829218.......315843055........5634207241 ....351549.....8178097.....175882357......4037185979.......99751773733 ...1750896....56422648....1653336285.....52016332522.....1783799078413 ...8730234...390661554...15639380661....676967599202....32322581577916 ..43522407..2704080467..147826932337...8797063846281...584495537657334 .217032372.18732156320.1399067559974.114525000303377.10594536209194545 LINKS R. H. Hardin, Table of n, a(n) for n = 1..111 EXAMPLE Some solutions for 5X4 with a(1,1)=0 ..0..1..1..1....0..1..0..0....0..1..0..1....0..1..0..1....0..0..0..1 ..0..0..1..0....1..0..1..1....0..0..1..0....1..0..0..0....0..0..1..1 ..0..0..1..0....1..0..0..1....1..1..0..1....0..1..1..0....1..1..1..0 ..1..1..1..0....0..1..1..0....0..1..1..0....1..1..0..1....0..0..0..1 ..0..1..0..0....0..0..1..0....0..0..1..0....1..0..0..1....1..1..0..1 CROSSREFS Sequence in context: A245992 A267566 A165023 * A186817 A107658 A181254 Adjacent sequences: A186822 A186823 A186824 * A186826 A186827 A186828 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 27 2011 STATUS approved

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Last modified December 8 03:48 EST 2022. Contains 358672 sequences. (Running on oeis4.)