Primes at which difference pattern X2Y (X and Y >= 6) occurs in A001223.

Terms

a(0) =29a(1) =59a(2) =137a(3) =149a(4) =179a(5) =239a(6) =269a(7) =419a(8) =431a(9) =521a(10) =569a(11) =599a(12) =659a(13) =809a(14) =1019a(15) =1031a(16) =1049a(17) =1061a(18) =1151a(19) =1229a(20) =1289a(21) =1319a(22) =1619a(23) =1721a(24) =1931a(25) =1949a(26) =2027a(27) =2111a(28) =2129a(29) =2309