a(n) is the first number k such that there are exactly n pairs of primes p < q with p + q = k such that p*q - k and p*q + k are both prime.
A358822
a(n) is the first number k such that there are exactly n pairs of primes p < q with p + q = k such that p*q - k and p*q + k are both prime.
Terms
- a(0) =2a(1) =8a(2) =48a(3) =30a(4) =114a(5) =264a(6) =390a(7) =630a(8) =1080a(9) =660a(10) =1470a(11) =2046a(12) =2730a(13) =1680a(14) =2310a(15) =4530a(16) =1650a(17) =2760a(18) =1290a(19) =4170a(20) =3150a(21) =4590a(22) =4440a(23) =8610a(24) =7800a(25) =6090a(26) =7950a(27) =5040a(28) =7560a(29) =11550
External references
- oeis: A358822