Numbers n = Product_(p_i^e_i) such that nn = Product_((p_i + 2)^e_i) is divisible by n.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =105a(8) =128a(9) =210a(10) =256a(11) =315a(12) =420a(13) =512a(14) =630a(15) =840a(16) =1024a(17) =1260a(18) =1575a(19) =1680a(20) =2048a(21) =2520a(22) =3150a(23) =3360a(24) =4096a(25) =5040a(26) =6300a(27) =6720a(28) =8192a(29) =10080