a(1)=10; if n = Product p_i^e_i, n > 1, then a(n) = Product p_{i+1}^e_i * Product p_{i+3}^e_i.

Terms

a(0) =10a(1) =21a(2) =55a(3) =441a(4) =91a(5) =1155a(6) =187a(7) =9261a(8) =3025a(9) =1911a(10) =247a(11) =24255a(12) =391a(13) =3927a(14) =5005a(15) =194481a(16) =551a(17) =63525a(18) =713a(19) =40131a(20) =10285a(21) =5187a(22) =1073a(23) =509355a(24) =8281a(25) =8211a(26) =166375a(27) =82467a(28) =1271a(29) =105105