a(n) = (11*n + 3)^2.

Terms

a(0) =9a(1) =196a(2) =625a(3) =1296a(4) =2209a(5) =3364a(6) =4761a(7) =6400a(8) =8281a(9) =10404a(10) =12769a(11) =15376a(12) =18225a(13) =21316a(14) =24649a(15) =28224a(16) =32041a(17) =36100a(18) =40401a(19) =44944a(20) =49729a(21) =54756a(22) =60025a(23) =65536a(24) =71289a(25) =77284a(26) =83521a(27) =90000a(28) =96721a(29) =103684