a(n) = (prime(n)^4 - prime(n^4))/2, where prime(n) is the n-th prime.

Terms

a(0) =7a(1) =14a(2) =103a(3) =391a(4) =5002a(5) =8967a(6) =31065a(7) =45724a(8) =107077a(9) =301276a(10) =382000a(11) =820141a(12) =1246909a(13) =1479730a(14) =2129740a(15) =3534420a(16) =5523879a(17) =6237871a(18) =9209731a(19) =11625564a(20) =12865129a(21) =17844972a(22) =21754756a(23) =28999632a(24) =41437737a(25) =48684207a(26) =52341667a(27) =60941856