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1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 4, 1, 2, 3, 1, 1, 1, 1, 2, 1, 2, 1, 4, 1, 2, 1, 28, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 1, 10, 1, 2, 1, 4, 3, 2, 1, 4, 1, 1, 3, 2, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1, 1, 1, 2, 1, 2, 3, 2, 1, 1, 1, 2, 1, 4, 1, 2, 1, 2, 1, 2, 1, 28, 1, 2, 3, 4, 1, 2, 7, 4, 1, 2, 5, 4, 1, 1, 3, 1, 1, 2, 1, 2, 3
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OFFSET
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1,6
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LINKS
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FORMULA
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PROG
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(PARI)
A003961(n) = { my(f = factor(n)); for(i=1, #f~, f[i, 1] = nextprime(f[i, 1]+1)); factorback(f); };
A351546(n) = { my(f=factor(sigma(n)), u=A003961(n)); prod(k=1, #f~, f[k, 1]^((0!=(u%f[k, 1]))*f[k, 2])); };
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CROSSREFS
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Differs from A353688 for the first time at n = 28, 30, 40, 60, 66, 84, 90, 102, 120, ...
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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