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A078916 a(n) = prime(n) + 2*n. 6

%I #20 Jan 27 2023 05:55:32

%S 4,7,11,15,21,25,31,35,41,49,53,61,67,71,77,85,93,97,105,111,115,123,

%T 129,137,147,153,157,163,167,173,189,195,203,207,219,223,231,239,245,

%U 253,261,265,277,281,287,291,305,319,325,329,335,343,347,359,367,375

%N a(n) = prime(n) + 2*n.

%F a(n) = A014688(n) + n. - _Zak Seidov_, Nov 10 2013

%F a(n) = A000040(n) + A005843(n). - _Elmo R. Oliveira_, Jan 21 2023

%o (Magma) [ &+[(2*n+NthPrime(n))]: n in [1..1000] ]; // _Vincenzo Librandi_, Aug 01 2010

%Y Cf. A000040, A005843, A078917, A014688.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Dec 13 2002

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Last modified April 16 04:02 EDT 2024. Contains 371696 sequences. (Running on oeis4.)