a(n) = 32*(32*n^2 + 1).

Terms

a(0) =32a(1) =1056a(2) =4128a(3) =9248a(4) =16416a(5) =25632a(6) =36896a(7) =50208a(8) =65568a(9) =82976a(10) =102432a(11) =123936a(12) =147488a(13) =173088a(14) =200736a(15) =230432a(16) =262176a(17) =295968a(18) =331808a(19) =369696a(20) =409632a(21) =451616a(22) =495648a(23) =541728a(24) =589856a(25) =640032a(26) =692256a(27) =746528a(28) =802848a(29) =861216