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

Terms

a(0) =2a(1) =6a(2) =30a(3) =110a(4) =306a(5) =702a(6) =1406a(7) =2550a(8) =4290a(9) =6806a(10) =10302a(11) =15006a(12) =21170a(13) =29070a(14) =39006a(15) =51302a(16) =66306a(17) =84390a(18) =105950a(19) =131406a(20) =161202a(21) =195806a(22) =235710a(23) =281430a(24) =333506a(25) =392502a(26) =459006a(27) =533630a(28) =617010a(29) =709806