a(n) = prime(n)^4 - 8.

Terms

a(0) =8a(1) =73a(2) =617a(3) =2393a(4) =14633a(5) =28553a(6) =83513a(7) =130313a(8) =279833a(9) =707273a(10) =923513a(11) =1874153a(12) =2825753a(13) =3418793a(14) =4879673a(15) =7890473a(16) =12117353a(17) =13845833a(18) =20151113a(19) =25411673a(20) =28398233a(21) =38950073a(22) =47458313a(23) =62742233a(24) =88529273a(25) =104060393a(26) =112550873