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 A187312 Half the number of (n+2)X6 binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6 1
 71836, 3029032, 125103786, 5243407780, 219684364642, 9206325629324, 385878307185440, 16174152113717987, 677941845846382141, 28416164592526303012, 1191073362353254969342, 49924255054152257493562 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A187317 LINKS R. H. Hardin, Table of n, a(n) for n = 1..200 EXAMPLE Some solutions for 4X6 with a(1,1)=0 ..0..0..1..0..1..1....0..0..1..1..0..0....0..0..1..1..1..1....0..0..1..0..0..1 ..0..1..1..0..1..1....0..1..0..0..1..0....0..0..0..1..1..0....0..1..1..1..1..0 ..0..0..1..1..0..0....0..1..1..0..0..1....0..1..1..0..0..1....0..0..1..0..0..1 ..0..0..0..0..1..1....0..0..0..1..1..1....0..0..1..0..0..0....0..1..1..0..1..1 CROSSREFS Sequence in context: A097245 A025292 A025310 * A080477 A234330 A333684 Adjacent sequences: A187309 A187310 A187311 * A187313 A187314 A187315 KEYWORD nonn AUTHOR R. H. Hardin Mar 08 2011 STATUS approved

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Last modified February 8 23:03 EST 2023. Contains 360153 sequences. (Running on oeis4.)