a(n) = (11*n)^4.

Terms

a(0) =0a(1) =14641a(2) =234256a(3) =1185921a(4) =3748096a(5) =9150625a(6) =18974736a(7) =35153041a(8) =59969536a(9) =96059601a(10) =146410000a(11) =214358881a(12) =303595776a(13) =418161601a(14) =562448656a(15) =741200625a(16) =959512576a(17) =1222830961a(18) =1536953616a(19) =1908029761a(20) =2342560000a(21) =2847396321a(22) =3429742096a(23) =4097152081a(24) =4857532416