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1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 3, 1, 1, 2, 1, 4, 3, 2, 1, 4, 1, 2, 1, 3, 1, 5, 1, 1, 3, 2, 4, 3, 1, 2, 3, 2, 1, 5, 1, 4, 4, 2, 1, 2, 1, 2, 3, 4, 1, 2, 5, 3, 3, 2, 1, 6, 1, 2, 5, 1, 5, 6, 1, 4, 6, 5, 1, 6, 1, 2, 3, 4, 7, 6, 1, 3, 1, 2, 1, 7, 5, 2, 3, 8, 1, 7, 7, 3, 3, 2, 5, 2, 1, 2, 9, 4, 1, 6, 1, 8, 8
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,6
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COMMENTS
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LINKS
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MATHEMATICA
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A309639[n_] := For[k = 1, True, k++, If[Divisible[Denominator[ HarmonicNumber[k]], n], Return[k]]];
Module[{b}, b[_] = 0;
a[n_] := With[{t = A330691[n]}, b[t] = b[t] + 1]];
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PROG
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(PARI)
ordinal_transform(invec) = { my(om = Map(), outvec = vector(length(invec)), pt); for(i=1, length(invec), if(mapisdefined(om, invec[i]), pt = mapget(om, invec[i]), pt = 0); outvec[i] = (1+pt); mapput(om, invec[i], (1+pt))); outvec; };
v330754 = ordinal_transform(vector(up_to, n, A330691(n)));
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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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