Triangle T(n,k): the number of binary sequences of n zeros and n ones in which the shortest run is of length k.

A227924

Triangle T(n,k): the number of binary sequences of n zeros and n ones in which the shortest run is of length k.

Terms

    a(0) =2a(1) =4a(2) =2a(3) =18a(4) =0a(5) =2a(6) =64a(7) =4a(8) =0a(9) =2a(10) =238a(11) =12a(12) =0a(13) =0a(14) =2a(15) =890a(16) =28a(17) =4a(18) =0a(19) =0a(20) =2a(21) =3348a(22) =70a(23) =12a(24) =0a(25) =0a(26) =0a(27) =2a(28) =12662a(29) =182

External references