The sums of pairs of adjacent terms are the odd palindromic primes in ascending order.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =7a(5) =94a(6) =37a(7) =114a(8) =67a(9) =124a(10) =189a(11) =164a(12) =209a(13) =174a(14) =553a(15) =204a(16) =583a(17) =214a(18) =705a(19) =224a(20) =10077a(21) =424a(22) =10177a(23) =1134a(24) =10277a(25) =2144a(26) =10577a(27) =2244a(28) =11087a(29) =2744