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0, 0, 0, 0, 0, 0, 3, 0, 2, 0, 3, 0, 5, 4, 3, 0, 2, 3, 5, 0, 3, 4, 7, 0, 0, 6, 2, 5, 9, 4, 10, 0, 2, 3, 3, 4, 9, 6, 4, 0, 11, 4, 12, 5, 0, 8, 13, 0, 0, 1, 7, 7, 15, 3, 5, 6, 8, 10, 16, 5, 17, 11, 5, 0, 3, 3, 14, 4, 6, 4, 16, 5, 18, 10, 4, 7, 4, 5, 19, 0, 4, 12, 21, 5, 6, 13, 9, 6, 22, 1, 5, 9, 10, 14, 7, 0, 24, 1, 6
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,7
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LINKS
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PROG
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(PARI)
Abincompreflen(n, m) = { my(x=binary(n), y=binary(m), u=min(#x, #y)); for(i=1, u, if(x[i]!=y[i], return(i-1))); (u); };
A156552(n) = {my(f = factor(n), p, p2 = 1, res = 0); for(i = 1, #f~, p = 1 << (primepi(f[i, 1]) - 1); res += (p * p2 * (2^(f[i, 2]) - 1)); p2 <<= f[i, 2]); res}; \\ From A156552
A061395(n) = if(n>1, primepi(vecmax(factor(n)[, 1])), 0);
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CROSSREFS
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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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