Primes p such that p plus or minus the sum of its digits squared yields a prime in both cases.

Terms

a(0) =13a(1) =127a(2) =457a(3) =1429a(4) =1553a(5) =1621a(6) =2273a(7) =2341a(8) =2837a(9) =4129a(10) =4231a(11) =4561a(12) =4813a(13) =5119a(14) =5519a(15) =5531a(16) =6121a(17) =6451a(18) =6547a(19) =8161a(20) =8167a(21) =8219a(22) =8237a(23) =8783a(24) =8819a(25) =8831a(26) =8941a(27) =9511a(28) =10267a(29) =10559