a(n) = reverse(2^n) mod 2^n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =13a(4) =23a(5) =46a(6) =53a(7) =140a(8) =215a(9) =105a(10) =210a(11) =2808a(12) =2918a(13) =15593a(14) =21187a(15) =63556a(16) =7987a(17) =179118a(18) =358137a(19) =466945a(20) =420750a(21) =4034914a(22) =8068838a(23) =10946113a(24) =23445533a(25) =46880176a(26) =22406063a(27) =117663950a(28) =219078635a(29) =1060248229