Composite numbers n such that p^2 * (p - 1) divides 2(n - p) for every prime p dividing n.

Terms

a(0) =4a(1) =8a(2) =12a(3) =16a(4) =32a(5) =48a(6) =64a(7) =128a(8) =192a(9) =256a(10) =448a(11) =512a(12) =768a(13) =1024a(14) =2048a(15) =3072a(16) =4096a(17) =8192a(18) =12288a(19) =16384a(20) =28672a(21) =32768a(22) =49152a(23) =65536a(24) =131072a(25) =196608a(26) =262144a(27) =524288a(28) =786432a(29) =1048576