a(n) = 57122*n^2 - 47320*n + 9801.

Terms

a(0) =19603a(1) =143649a(2) =381939a(3) =734473a(4) =1201251a(5) =1782273a(6) =2477539a(7) =3287049a(8) =4210803a(9) =5248801a(10) =6401043a(11) =7667529a(12) =9048259a(13) =10543233a(14) =12152451a(15) =13875913a(16) =15713619a(17) =17665569a(18) =19731763a(19) =21912201a(20) =24206883a(21) =26615809a(22) =29138979