a(n) = prime(1)^4 + prime(n)^4.

Terms

a(0) =32a(1) =97a(2) =641a(3) =2417a(4) =14657a(5) =28577a(6) =83537a(7) =130337a(8) =279857a(9) =707297a(10) =923537a(11) =1874177a(12) =2825777a(13) =3418817a(14) =4879697a(15) =7890497a(16) =12117377a(17) =13845857a(18) =20151137a(19) =25411697a(20) =28398257a(21) =38950097a(22) =47458337a(23) =62742257a(24) =88529297a(25) =104060417a(26) =112550897a(27) =131079617a(28) =141158177