List of primitive prime divisors of the numbers 3^n-2^n (A001047) in their order of occurrence.

Terms

a(0) =5a(1) =19a(2) =13a(3) =211a(4) =7a(5) =29a(6) =71a(7) =97a(8) =1009a(9) =11a(10) =23a(11) =331a(12) =61a(13) =53a(14) =29927a(15) =463a(16) =3571a(17) =17a(18) =401a(19) =129009091a(20) =577a(21) =1559a(22) =745181a(23) =4621a(24) =43a(25) =6217a(26) =35839a(27) =47a(28) =2002867877a(29) =5521