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Solutions of k'=k+4, where k' is the arithmetic derivative of k. - Paolo P. Lava, Feb 02 2012
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Solutions of the differential equation k'=k+4, where k' is the arithmetic derivative of k. - Paolo P. Lava, Feb 02 2012
(Magma) [4*p: p in PrimesUpTo(300)]; // Vincenzo Librandi, Mar 26 2014
(Magma) [4*p: p in PrimesUpTo(300)]; // Vincenzo Librandi, Mar 26 2014
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n Numbers k such that sum(Sum_{d|n,k} (-1)^d) = A048272(nk) = 2. - Benoit Cloitre, Apr 14 2002
Solutions of the differential equation nk'=nk+4, where nk' is the arithmetic derivative of nk. - Paolo P. Lava, Feb 02 2012
(MAGMAMagma) [4*p: p in PrimesUpTo(300)]; // Vincenzo Librandi, Mar 26 2014
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