Least integer square >= n^3.

Terms

a(0) =0a(1) =1a(2) =9a(3) =36a(4) =64a(5) =144a(6) =225a(7) =361a(8) =529a(9) =729a(10) =1024a(11) =1369a(12) =1764a(13) =2209a(14) =2809a(15) =3481a(16) =4096a(17) =5041a(18) =5929a(19) =6889a(20) =8100a(21) =9409a(22) =10816a(23) =12321a(24) =13924a(25) =15625a(26) =17689a(27) =19881a(28) =22201a(29) =24649