Number of sequences of n coin flips that win on the last flip, if the sequence of flips ends with (0,0,1,1) or (1,1,1,1).

A199594

Number of sequences of n coin flips that win on the last flip, if the sequence of flips ends with (0,0,1,1) or (1,1,1,1).

Terms

    a(0) =0a(1) =0a(2) =0a(3) =2a(4) =3a(5) =5a(6) =10a(7) =18a(8) =31a(9) =56a(10) =100a(11) =177a(12) =315a(13) =561a(14) =997a(15) =1773a(16) =3154a(17) =5609a(18) =9975a(19) =17741a(20) =31552a(21) =56114a(22) =99798a(23) =177489a(24) =315660a(25) =561395a(26) =998430a(27) =1775687a(28) =3158023a(29) =5616480

External references