Number T(n,k) of ballot sequences of length n having difference k between the multiplicities of the smallest and the largest value; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
A238707
Number T(n,k) of ballot sequences of length n having difference k between the multiplicities of the smallest and the largest value; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =2a(4) =0a(5) =0a(6) =2a(7) =2a(8) =0a(9) =0a(10) =4a(11) =3a(12) =3a(13) =0a(14) =0a(15) =2a(16) =14a(17) =6a(18) =4a(19) =0a(20) =0a(21) =12a(22) =14a(23) =35a(24) =10a(25) =5a(26) =0a(27) =0a(28) =2a(29) =69
External references
- oeis: A238707