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

Terms

a(0) =2a(1) =1a(2) =4a(3) =3a(4) =8a(5) =93a(6) =38a(7) =113a(8) =68a(9) =123a(10) =190a(11) =163a(12) =210a(13) =173a(14) =554a(15) =203a(16) =584a(17) =213a(18) =706a(19) =223a(20) =10078a(21) =423a(22) =10178a(23) =1133a(24) =10278a(25) =2143a(26) =10578a(27) =2243a(28) =11088a(29) =2743