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a(n) = P(n,6) = 1+6*K(n,6)=1+6*A034783(n). P(n,6) are special primes of 6k+1. The relevant values of k are given by A034783.
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%I #5 Oct 15 2013 22:30:17

%S 103,283,331,367,463,547,607,619,643,709,727,739,823,859,883,907,967,

%T 1021,1087,1123,1171,1249,1303,1423,1447,1483,1489,1543,1579,1597,

%U 1627,1699,1723,1747,1783

%N a(n) = P(n,6) = 1+6*K(n,6)=1+6*A034783(n). P(n,6) are special primes of 6k+1. The relevant values of k are given by A034783.

%Y Cf. A034693, A034694, A034783.

%K nonn

%O 1,1

%A _Labos Elemer_