Primes of the form 210k + 61.

Terms

a(0) =61a(1) =271a(2) =691a(3) =1321a(4) =1531a(5) =1741a(6) =1951a(7) =2161a(8) =2371a(9) =2791a(10) =3001a(11) =3631a(12) =4051a(13) =4261a(14) =5101a(15) =5521a(16) =6151a(17) =6361a(18) =6571a(19) =6781a(20) =6991a(21) =7411a(22) =7621a(23) =8461a(24) =9091a(25) =9511a(26) =9721a(27) =9931a(28) =10141a(29) =10771