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A105596
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a(n) = Sum_{k=0..n} A105595(k)*(-1)^k*A105595(n-k) (interpolated zeros suppressed).
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3
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1, 5, 13, 17, 25, 25, 33, 21, 9, -15, -23, -3, -11, -31, -47, -35, 5, -47, -83, -75, -211, -295, -267, -267, -99, -107, -159, -415, -347, -679, -279, -583, -395, -839, -1031, -1291, -1139, -1883, -1519, -1643, -855, -1591, -1571, -1851, -1195, -2419, -1923, -2179, -891, -1919, -2535
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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COMMENTS
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Conjecture : a(2n)=1 mod 4 for all n, a(2n+1)=0 for all n.
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LINKS
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MAPLE
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end proc:
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MATHEMATICA
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A105594[n_, k_] := A105594[n, k] = Sum[Abs[MoebiusMu[ Binomial[n, j]]*Mod[Binomial[j, k], 2]], {j, 0, n}]//Mod[#, 2]&;
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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STATUS
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approved
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