Primes at which difference pattern X2424Y (X and Y >= 6) occurs in A001223.

Terms

a(0) =1481a(1) =21011a(2) =22271a(3) =55331a(4) =144161a(5) =165701a(6) =166841a(7) =195731a(8) =201821a(9) =225341a(10) =247601a(11) =268811a(12) =326141a(13) =347981a(14) =361211a(15) =397751a(16) =465161a(17) =518801a(18) =536441a(19) =633461a(20) =633791a(21) =661091a(22) =768191a(23) =795791a(24) =829721a(25) =857951a(26) =876011a(27) =958541a(28) =1008851