A031445 n-th number k which in base 2 has 2 more 0's than 1's.

8, 33, 34, 36, 40, 48, 131, 133, 134, 137, 138, 140, 145, 146, 148, 152, 161, 162, 164, 168, 176, 193, 194, 196, 200, 208, 224, 519, 523, 525, 526, 531, 533, 534, 537, 538, 540, 547, 549, 550, 553, 554, 556, 561, 562, 564, 568