Smallest prime p such that there is a gap of 2*prime(n) between p and previous prime.

Terms

a(0) =11a(1) =29a(2) =149a(3) =127a(4) =1151a(5) =2503a(6) =1361a(7) =30631a(8) =81509a(9) =44351a(10) =34123a(11) =404671a(12) =265703a(13) =156007a(14) =1101071a(15) =1098953a(16) =1349651a(17) =3117421a(18) =6958801a(19) =10343903a(20) =6034393a(21) =49269739a(22) =83751287a(23) =39390167a(24) =166726561a(25) =107534789a(26) =232424029a(27) =253878617a(28) =327966319a(29) =519653597