Least prime divisor of A005260(n) which does not divide any previous term A005260(k) with k < n, or 1 if such a primitive prime divisor of A005260(n) does not exist.
A242174
Least prime divisor of A005260(n) which does not divide any previous term A005260(k) with k < n, or 1 if such a primitive prime divisor of A005260(n) does not exist.
Terms
- a(0) =2a(1) =3a(2) =41a(3) =5a(4) =7a(5) =349a(6) =61a(7) =75617a(8) =31a(9) =13a(10) =499a(11) =643897693a(12) =17a(13) =19a(14) =1729774061a(15) =101a(17) =138407a(18) =83a(19) =167a(20) =59a(21) =29a(22) =653a(23) =257a(25) =347a(26) =13679a(27) =37a(29) =211a(30) =151a(31) =43a(32) =97
External references
- oeis: A242174