Positions of check bits in code in A075967.

Terms

a(0) =65535a(1) =16711935a(2) =252645135a(3) =858993459a(4) =1431655765a(5) =1789569706a(6) =2527709560a(7) =5047409558a(8) =11322905375a(9) =20900211843a(10) =39100503852a(11) =60375175654a(12) =81769697955a(13) =160265870155