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1, 2, 3, 2, 5, 2, 7, 2, 3, 1, 11, 3, 31, 41, 3, 61, 71, 3, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 13, 23, 3, 43, 53, 3, 73, 83, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 3, 5, 5, 3, 5, 5, 3, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 7, 17, 3, 37, 47, 3, 67, 7, 3, 97, 2, 2, 2
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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MAPLE
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read("transforms") ;
end proc:
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MATHEMATICA
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a[n_] := FactorInteger[IntegerReverse[n]][[1, 1]];
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PROG
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(PARI) lpf(n) = if (n==1, 1, vecmin(factor(n)[, 1]));
a(n) = lpf(fromdigits(Vecrev(digits(n)))); \\ Michel Marcus, Feb 11 2020
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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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