n+p(n)+p(p(n)) is a palindrome, where p(n) denotes the n-th prime.

Terms

a(0) =1a(1) =17a(2) =20a(3) =29a(4) =253a(5) =344a(6) =370a(7) =445a(8) =479a(9) =675a(10) =786a(11) =887a(12) =1539a(13) =3115a(14) =4221a(15) =4271a(16) =6002a(17) =6416a(18) =7657a(19) =9015a(20) =10003a(21) =11563a(22) =12651a(23) =12984a(24) =14200a(25) =14494a(26) =14880a(27) =14928a(28) =15504a(29) =15738