a(n+1) = smallest prime p > a(n) such that p-1 divides a(1)*a(2)*...*a(n); or if no such prime p exists, then a(n+1) = smallest prime > a(n).

A282027

a(n+1) = smallest prime p > a(n) such that p-1 divides a(1)*a(2)*...*a(n); or if no such prime p exists, then a(n+1) = smallest prime > a(n).

Terms

    a(0) =2a(1) =3a(2) =7a(3) =43a(4) =47a(5) =283a(6) =659a(7) =1319a(8) =1699a(9) =9227a(10) =11887a(11) =55399a(12) =71359a(13) =159707a(14) =396719a(15) =558643a(16) =793439a(17) =794039a(18) =1117379a(19) =1117943a(20) =1143887a(21) =2235887a(22) =5554067a(23) =6707747a(24) =6863323a(25) =13734803a(26) =15667447a(27) =16663963a(28) =18214099a(29) =20123239

External references