Where the prime race among 9k+1, ..., 9k+8 changes leader.

Terms

a(0) =2a(1) =167a(2) =191a(3) =419a(4) =461a(5) =563a(6) =587a(7) =617a(8) =677a(9) =761a(10) =857a(11) =881a(12) =929a(13) =1427a(14) =1451a(15) =1607a(16) =1667a(17) =1777a(18) =1823a(19) =1867a(20) =1913a(21) =2351a(22) =2399a(23) =2459a(24) =4127a(25) =4583a(26) =5039a(27) =5087a(28) =5171a(29) =7283