a(n) = 27225*n^2 - 12098*n + 1344.

Terms

a(0) =16471a(1) =86048a(2) =210075a(3) =388552a(4) =621479a(5) =908856a(6) =1250683a(7) =1646960a(8) =2097687a(9) =2602864a(10) =3162491a(11) =3776568a(12) =4445095a(13) =5168072a(14) =5945499a(15) =6777376a(16) =7663703a(17) =8604480a(18) =9599707a(19) =10649384a(20) =11753511a(21) =12912088a(22) =14125115a(23) =15392592a(24) =16714519