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1, 1, 5, 18, 69, 245, 923, 3412, 12864, 48549, 184755, 705162, 2704155, 10399675, 40116525, 155114088, 601080389, 2333593104, 9075135299, 35345215162, 137846527891, 538257689683, 2104098963719, 8233430018756, 32247603683030
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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LINKS
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FORMULA
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EXAMPLE
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a(4) = 18 = (0, -1, 0, 1) dot (1, 2, 6, 20), where A000984 = (1, 2, 6, 20, 70, 252, ...) and (0, -1, 0, 1) = row 4 of triangle A054525.
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MAPLE
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read("transforms") : A000984 := proc(n) binomial(2*n, n) ; end: a000984 := [seq(A000984(n), n=0..50)] ; a134764 := MOBIUS(a000984) ; for i from 1 to nops(a134764) do printf("%d, ", op(i, a134764)) ; od: # R. J. Mathar, Jan 19 2009
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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