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a(n) = prime(10*n - 4).
1

%I #16 Sep 28 2023 12:40:01

%S 13,53,101,151,199,263,317,383,443,503,577,641,701,769,839,911,983,

%T 1049,1109,1193,1277,1321,1429,1487,1559,1619,1699,1783,1871,1949,

%U 2017,2089,2161,2267,2339,2393,2473,2579,2663,2713,2791,2861,2957

%N a(n) = prime(10*n - 4).

%H Harvey P. Dale, <a href="/A031905/b031905.txt">Table of n, a(n) for n = 1..1000</a>

%t Prime[10 Range[50]-4] (* _Harvey P. Dale_, Sep 28 2023 *)

%o (Magma) [ NthPrime(10*n-4): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 08 2011

%K nonn

%O 1,1

%A _Jeff Burch_