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A184597
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1/4 the number of (n+1) X 3 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
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1
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5, 24, 156, 1123, 8268, 60569, 446426, 3333345, 25146354, 190958245, 1457049922, 11161985897, 85804483994, 661561762629, 5113755311738, 39616036230913, 307500608317658, 2390939974122621, 18619094389326362, 145193529732807545
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OFFSET
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1,1
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COMMENTS
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Column 2 of A184604.
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..200
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EXAMPLE
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Some solutions for 5 X 3:
..0..0..0....0..0..1....1..0..1....0..1..1....0..1..1....1..1..0....0..0..1
..1..1..1....1..1..0....1..0..0....0..0..0....0..0..0....1..1..0....0..1..1
..0..0..1....0..0..0....0..0..1....0..0..0....0..0..1....1..1..0....0..0..0
..0..0..0....1..1..1....1..1..1....0..1..1....1..1..0....0..0..1....0..1..1
..0..0..0....1..0..0....0..1..0....1..1..0....0..1..1....1..1..0....1..1..0
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CROSSREFS
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Sequence in context: A241134 A340358 A009424 * A009601 A009676 A192995
Adjacent sequences: A184594 A184595 A184596 * A184598 A184599 A184600
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Jan 18 2011
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STATUS
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approved
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