A051246 Binary numbers d(1)...d(j) such that d(i)=d(j+1-k) for all but 4 i.

9, 15, 32, 35, 37, 41, 44, 47, 49, 50, 55, 59, 61, 62, 130, 132, 135, 136, 139, 141, 144, 147, 149, 154, 156, 159, 160, 163, 166, 169, 172, 175, 177, 180, 183, 184, 187, 190, 192, 197, 198, 201, 202, 207, 209, 210, 215, 216, 221