Triangle read by rows: T(n,k) is the number of binary sequences of length n containing k subsequences 001 (n,k>=0).

A118424

Triangle read by rows: T(n,k) is the number of binary sequences of length n containing k subsequences 001 (n,k>=0).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =7a(4) =1a(5) =12a(6) =4a(7) =20a(8) =12a(9) =33a(10) =30a(11) =1a(12) =54a(13) =68a(14) =6a(15) =88a(16) =144a(17) =24a(18) =143a(19) =291a(20) =77a(21) =1a(22) =232a(23) =568a(24) =216a(25) =8a(26) =376a(27) =1080a(28) =552a(29) =40

External references