a(n) = floor(n^2 * log(n)).

Terms

a(0) =0a(1) =2a(2) =9a(3) =22a(4) =40a(5) =64a(6) =95a(7) =133a(8) =177a(9) =230a(10) =290a(11) =357a(12) =433a(13) =517a(14) =609a(15) =709a(16) =818a(17) =936a(18) =1062a(19) =1198a(20) =1342a(21) =1496a(22) =1658a(23) =1830a(24) =2011a(25) =2202a(26) =2402a(27) =2612a(28) =2831a(29) =3061