Concatenations of pairs of primes that differ by 100.

Terms

a(0) =3103a(1) =7107a(2) =13113a(3) =31131a(4) =37137a(5) =67167a(6) =73173a(7) =79179a(8) =97197a(9) =127227a(10) =139239a(11) =151251a(12) =157257a(13) =163263a(14) =181281a(15) =193293a(16) =211311a(17) =283383a(18) =331431a(19) =349449a(20) =367467a(21) =379479a(22) =409509a(23) =421521a(24) =457557a(25) =463563a(26) =487587a(27) =499599a(28) =541641a(29) =547647