Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1.

A218577

Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =7a(8) =6a(9) =1a(10) =1a(11) =15a(12) =25a(13) =11a(14) =1a(15) =1a(16) =31a(17) =90a(18) =74a(19) =20a(20) =1a(21) =1a(22) =63a(23) =301a(24) =402a(25) =209a(26) =37a(27) =1a(28) =1a(29) =127

External references