The number of length n binary words with some prefix which contains two more 1's than 0's or two more 0's than 1's.

A233411

The number of length n binary words with some prefix which contains two more 1's than 0's or two more 0's than 1's.

Terms

    a(0) =0a(1) =0a(2) =2a(3) =4a(4) =12a(5) =24a(6) =56a(7) =112a(8) =240a(9) =480a(10) =992a(11) =1984a(12) =4032a(13) =8064a(14) =16256a(15) =32512a(16) =65280a(17) =130560a(18) =261632a(19) =523264a(20) =1047552a(21) =2095104a(22) =4192256a(23) =8384512a(24) =16773120a(25) =33546240a(26) =67100672a(27) =134201344a(28) =268419072a(29) =536838144

External references