Primes p such that, if q,r,s are the next three primes, both p*q*r*s - (p+q+r+s) and p*q*r*s + (p+q+r+s) are primes.
A390929
Primes p such that, if q,r,s are the next three primes, both p*q*r*s - (p+q+r+s) and p*q*r*s + (p+q+r+s) are primes.
Terms
- a(0) =2a(1) =3a(2) =2657a(3) =2741a(4) =3769a(5) =7193a(6) =13997a(7) =14561a(8) =17077a(9) =26501a(10) =34721a(11) =36151a(12) =44917a(13) =54983a(14) =56237a(15) =68447a(16) =79979a(17) =80599a(18) =92849a(19) =96167a(20) =97213a(21) =102931a(22) =104959a(23) =109579a(24) =120851a(25) =131783a(26) =137573a(27) =158771a(28) =159389a(29) =176417
External references
- oeis: A390929