A014851 Numbers n such that n divides s(n), where s(1)=1, s(k)=4*s(k-1)+k.

1, 2, 3, 4, 6, 9, 10, 12, 18, 20, 21, 27, 30, 36, 42, 50, 54, 60, 63, 68, 78, 81, 84, 90, 100, 108, 110, 126, 147, 150, 156, 162, 171, 180, 189, 204, 210, 220, 234, 243, 250, 252, 270, 294, 300, 310, 324, 330, 340, 342, 378, 390, 410, 420, 441, 450, 468, 486