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A102143
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Iccanobirt prime indices (13 of 15): Indices of prime numbers in A102123.
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1
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4, 6, 7, 11, 55, 56, 69, 87, 109, 191, 314, 4579, 6281, 6400, 23256, 31648
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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MATHEMATICA
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a[n_] := a[n] =
IntegerReverse[IntegerReverse[a[n - 1]] + a[n - 2] + IntegerReverse[a[n - 3]]];
a[0] = 0; a[1] = 0; a[2] = 1;
Select[Range[0, 5000], PrimeQ[a[#]] &] (* Robert Price, Apr 10 2020 *)
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CROSSREFS
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KEYWORD
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nonn,more,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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