a(n) = initial prime of n consecutive primes such that first and last have same digit sum.

Terms

a(0) =2a(1) =523a(2) =109a(3) =79a(4) =2a(5) =13a(6) =5a(7) =127a(8) =47a(9) =17a(10) =5a(11) =127a(12) =53a(13) =17a(14) =7a(15) =67a(16) =31a(17) =37a(18) =47a(19) =37a(20) =83a(21) =11a(22) =43a(23) =19a(24) =157a(25) =2a(26) =37a(27) =5a(28) =47a(29) =5