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Numbers n k such that 10n10k+3 is prime.
If For n=1, then 10n10k+3 = 13 (prime).
If For n=26, then 10n10k+3 = 263 (prime).
If For n=50, then 10n10k+3 = 503 (prime).
Solutions of the equation (10*n+3)'=1, where n' is the arithmetic derivative of n. [Paolo P. Lava, Nov 15 2012]
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(MAGMAMagma) [n: n in [0..1000]| IsPrime(10*n+3)]; // Vincenzo Librandi, Apr 06 2011
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Daniel Starodubtsev, <a href="/A102338/b102338.txt">Table of n, a(n) for n = 1..10000</a>
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