Start of a string of exactly 3 consecutive (but disjoint) pairs of twin primes.

Terms

a(0) =5a(1) =179a(2) =809a(3) =3359a(4) =4217a(5) =6761a(6) =18041a(7) =21587a(8) =26861a(9) =49367a(10) =67187a(11) =80447a(12) =82721a(13) =91127a(14) =97841a(15) =98897a(16) =103967a(17) =109829a(18) =122597a(19) =154157a(20) =178037a(21) =203321a(22) =208931a(23) =225749a(24) =227609a(25) =236867a(26) =243671a(27) =251201a(28) =266447a(29) =285611