Primes congruent to 21 mod 55.

Terms

a(0) =131a(1) =241a(2) =461a(3) =571a(4) =1231a(5) =1451a(6) =2111a(7) =2221a(8) =2441a(9) =2551a(10) =3541a(11) =3761a(12) =4091a(13) =4201a(14) =4421a(15) =4751a(16) =4861a(17) =5081a(18) =5521a(19) =5741a(20) =5851a(21) =6841a(22) =8161a(23) =8821a(24) =9041a(25) =9151a(26) =9371a(27) =9811a(28) =10141a(29) =10691