a(1) is the least k such that p(1) = (k*7)^2 + k*7 - 1 is prime, then a(n+1) is the least k such that (k*p(n))^2 + k*p(n) - 1 = p(n+1) is prime.
A120394
a(1) is the least k such that p(1) = (k*7)^2 + k*7 - 1 is prime, then a(n+1) is the least k such that (k*p(n))^2 + k*p(n) - 1 = p(n+1) is prime.
Terms
- a(0) =3a(1) =1a(2) =6a(3) =4a(4) =157a(5) =31a(6) =10a(7) =306a(8) =751a(9) =222a(10) =1296a(11) =4939
External references
- oeis: A120394