279841n^2 - 165048n + 24335.

Terms

a(0) =24335a(1) =139128a(2) =813603a(3) =2047760a(4) =3841599a(5) =6195120a(6) =9108323a(7) =12581208a(8) =16613775a(9) =21206024a(10) =26357955a(11) =32069568a(12) =38340863a(13) =45171840a(14) =52562499a(15) =60512840a(16) =69022863a(17) =78092568a(18) =87721955a(19) =97911024a(20) =108659775a(21) =119968208a(22) =131836323