Primes such that the sum of the predecessor and successor primes is divisible by 31.

Terms

a(0) =311a(1) =401a(2) =863a(3) =907a(4) =1117a(5) =1213a(6) =1237a(7) =1399a(8) =1427a(9) =2333a(10) =3299a(11) =3533a(12) =3821a(13) =3967a(14) =4243a(15) =4493a(16) =5273a(17) =5779a(18) =6199a(19) =6521a(20) =7069a(21) =8219a(22) =8369a(23) =8623a(24) =8741a(25) =8837a(26) =8929a(27) =9277a(28) =9613a(29) =10139