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0, 1, 1, 5, 2, 7, 1, 7, 8, 31, 13, 41, 3, 11, 14, 43, 19, 53, 2, 9, 11, 37, 16, 47, 4, 13, 17, 49, 22, 59, 1, 9, 10, 41, 17, 55, 12, 59, 71, 247, 106, 317, 26, 87, 113, 331, 148, 401, 19, 73, 92, 289, 127, 359, 33, 101, 134, 373, 169, 443, 4, 15, 19, 59, 26, 73, 27, 89, 116, 337, 151, 407, 41, 117, 158, 421, 193, 491, 34
(list;
graph;
refs;
listen;
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internal format)
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OFFSET
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0,4
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LINKS
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FORMULA
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PROG
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(PARI)
A003415(n) = if(n<=1, 0, my(f=factor(n)); n*sum(i=1, #f~, f[i, 2]/f[i, 1]));
A003557(n) = (n/factorback(factorint(n)[, 1]));
A346101(n) = { my(pr=1, p=2, m=1); while(n>0, my(d=n%p); if(d>0, m *= p^lift(1/Mod(d, p))); pr *= p; n \= p; p = nextprime(1+p)); return(m); };
(PARI)
A289234(n) = { my(pr=1, p=2, v=0); while(n>0, my (d=n%p); if(d>0, v += pr * lift(1/Mod(d, p))); pr *= p; n \= p; p = nextprime(1+p)); return(v); }; \\ From A289234.
A342002(n) = { my(s=0, m=1, p=2, e); while(n, e = (n%p); m *= p^(e>0); s += (e/p); n = n\p; p = nextprime(1+p)); (s*m); };
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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