Lower twin primes with lower twin prime index.

Terms

a(0) =11a(1) =29a(2) =137a(3) =239a(4) =641a(5) =1151a(6) =1931a(7) =2339a(8) =3851a(9) =4091a(10) =5639a(11) =6359a(12) =8231a(13) =9011a(14) =9431a(15) =11351a(16) =12161a(17) =14561a(18) =15731a(19) =17837a(20) =20441a(21) =25931a(22) =26951a(23) =29207a(24) =33767a(25) =37781a(26) =40847a(27) =42407a(28) =44381a(29) =46439