Least k for which the integers Floor(k/m^2) for m=1,2,...,n are distinct.

Terms

a(0) =1a(1) =1a(2) =4a(3) =9a(4) =18a(5) =32a(6) =75a(7) =108a(8) =147a(9) =196a(10) =324a(11) =405a(12) =500a(13) =726a(14) =864a(15) =1014a(16) =1372a(17) =1575a(18) =1800a(19) =2312a(20) =2601a(21) =3249a(22) =3610a(23) =4000a(24) =4851a(25) =5324a(26) =5819a(27) =6912a(28) =7500a(29) =8788