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A020480 Primes p which divide no f(q)-1 or f(q)+1 for prime q < p, where f(q) is the product of all primes <= q. 0

%I #6 Mar 30 2012 18:35:14

%S 2,13,17,23,41,43,47,67,71,83,89,101,103,107,109,113,127,137,151,157,

%T 179,193,199,227,233,239,241,251,257,263,269,281,283,293,337,353,359,

%U 367,373,379,383,397,401,419,421,431,433,439,449,457,461,479,487,491,499,503,523

%N Primes p which divide no f(q)-1 or f(q)+1 for prime q < p, where f(q) is the product of all primes <= q.

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified August 18 23:05 EDT 2024. Contains 375284 sequences. (Running on oeis4.)