A126070 & A005382

[zak seidov]

A126070  is wrong version of A005382,
Zak

%I A005382 M0849
%S A005382
2,3,7,19,31,37,79,97,139,157,199,211,229,271,307,331,337,367,379,
%T A005382
439,499,547,577,601,607,619,661,691,727,811,829,877,937,967,997,
%U A005382
1009,1069,1171,1237,1279,1297,1399,1429,1459,1531,1609,1627,1657
%N A005382 Numbers n such that n and 2n-1 are primes.


%I A126070
%S A126070 2,3,19,31,79,139,157
%N A126070 Primes p such that 2p-1 is a prime. A
variation on Germain primes.
%e A126070 For p=31, (2x31)-1 = 61 another prime.
%K A126070 nonn,new
%O A126070 1,1
%A A126070 M Bergot (thekingfishb(AT)yahoo.ca), Feb 28
2007
%E A126070 I thought this was already in the OEIS. -
njas.



 
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