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A157724 Numbers that are the sum of two distinct primes but are not twice a prime. 1

%I #4 Mar 30 2012 16:51:17

%S 5,7,8,9,12,13,15,16,18,19,20,21,24,25,28,30,31,32,33,36,39,40,42,43,

%T 44,45,48,49,50,52,54,55,56,60,61,63,64,66,68,69,70,72,73,75,76,78,80,

%U 81,84,85,88,90,91,92,96,98,99,100,102,103,104,105,108,109,110,111,112,114,115

%N Numbers that are the sum of two distinct primes but are not twice a prime.

%H Zak Seidov, <a href="/A157724/b157724.txt">Table of n, a(n) for n = 1..1000</a>

%e 10 = 3+7 is not a member since also 10 = 2*5.

%Y Cf. A038609.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Jul 05 2010

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Last modified June 9 07:31 EDT 2024. Contains 373229 sequences. (Running on oeis4.)