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1, 1, 1, 3, 5, 9, 11, 19, 33, 41, 71, 123, 153, 129, 101, 161, 167, 291, 287, 305, 199, 301, 303, 343, 151, 259, 195, 201, 117, 93, 111, 81, 71, 111, 111, 145, 103, 169, 145, 145, 71, 129, 143, 127, 183, 201, 255, 145, 113, 159, 195, 179, 245, 199, 385, 217, 241, 283, 555, 561, 337, 391, 377, 389, 441
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,4
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COMMENTS
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See also graph of this sequence.
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LINKS
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FORMULA
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EXAMPLE
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MAPLE
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for i from 0 to 2 do A[i]:= 1: G[i]:= 1 od:
for i from 3 to 303 do
A[i]:= G[i-1]+G[i-2]+G[i-3];
G[i]:= max(numtheory:-factorset(A[i]));
od:
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MATHEMATICA
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a[0] = a[1] = a[2] = 1; a[n_] := a[n] = FactorInteger[a[n - 1]][[-1, 1]] + FactorInteger[a[n - 2]][[-1, 1]] + FactorInteger[a[n - 3]][[-1, 1]]; Table[a@ n, {n, 0, 64}] (* Michael De Vlieger, Feb 07 2017 *)
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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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