a(1) = 1, a(2) = 16, a(n) = lcm(48, 2n^2) for n>2.

Terms

a(0) =1a(1) =16a(2) =144a(3) =96a(4) =1200a(5) =144a(6) =2352a(7) =384a(8) =1296a(9) =1200a(10) =5808a(11) =288a(12) =8112a(13) =2352a(14) =3600a(15) =1536a(16) =13872a(17) =1296a(18) =17328a(19) =2400a(20) =7056a(21) =5808a(22) =25392a(23) =1152a(24) =30000a(25) =8112a(26) =11664a(27) =4704a(28) =40368a(29) =3600