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A049054
Numbers n such that 10^n + 3 is prime.
+0
25
1, 2, 5, 6, 11, 17, 18, 39, 56, 101, 105, 107, 123, 413, 426, 2607, 7668, 10470, 11021, 17753, 26927
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.
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