Prime(prime(n))^2+1.

Terms

a(0) =10a(1) =26a(2) =122a(3) =290a(4) =962a(5) =1682a(6) =3482a(7) =4490a(8) =6890a(9) =11882a(10) =16130a(11) =24650a(12) =32042a(13) =36482a(14) =44522a(15) =58082a(16) =76730a(17) =80090a(18) =109562a(19) =124610a(20) =134690a(21) =160802a(22) =185762a(23) =212522a(24) =259082a(25) =299210a(26) =316970a(27) =344570a(28) =358802a(29) =380690