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A359815
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Dirichlet inverse of A359770, where A359770(n) = 1 if n and bigomega(n) are of different parity, otherwise 0.
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6
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1, -1, 0, 1, 0, 0, 0, -2, -1, 0, 0, -1, 0, 0, -1, 3, 0, 1, 0, -1, -1, 0, 0, 2, -1, 0, 0, -1, 0, 1, 0, -5, -1, 0, -1, -1, 0, 0, -1, 2, 0, 1, 0, -1, 0, 0, 0, -4, -1, 1, -1, -1, 0, 0, -1, 2, -1, 0, 0, -1, 0, 0, 0, 8, -1, 1, 0, -1, -1, 1, 0, 2, 0, 0, 0, -1, -1, 1, 0, -4, 0, 0, 0, -1, -1, 0, -1, 2, 0, 0, -1, -1, -1, 0, -1, 8
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OFFSET
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1,8
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LINKS
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FORMULA
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a(1) = 1, and for n > 1, a(n) = -Sum_{d|n, d<n} A359770(n/d) * a(d).
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PROG
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(PARI)
memoA359815 = Map();
A359815(n) = if(1==n, 1, my(v); if(mapisdefined(memoA359815, n, &v), v, v = -sumdiv(n, d, if(d<n, A359770(n/d)*A359815(d), 0)); mapput(memoA359815, n, v); (v)));
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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