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A298704 Numbers that are the smallest of four consecutive primes, no two of which, along with the product of the other two, sum to a nonprime. 1

%I #16 Mar 10 2024 00:24:04

%S 10942177,33612487,38370391,350212139,431472421,594652609,616335793,

%T 795968851,867683191,885354367,982828577,1058353099,1278213241,

%U 1367427883,1966024733,2329521127,2734073753,2959246399,3067739581

%N Numbers that are the smallest of four consecutive primes, no two of which, along with the product of the other two, sum to a nonprime.

%H Hans Havermann, <a href="/A298704/b298704.txt">Table of n, a(n) for n = 1..800</a>

%e 10942177, 10942187, 10942201, 10942207 are four consecutive primes. The six ways of adding the product of two of these to the sum of the other two yields 119731368805507, 119731521995971, 119731587649027, 119731631417971, 119731697071087, 119731850261971, all of which are prime. So 10942177 is a term of the sequence.

%K nonn

%O 1,1

%A _Hans Havermann_, Jan 24 2018

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Last modified May 12 23:40 EDT 2024. Contains 372497 sequences. (Running on oeis4.)