Triangular array of generalized Narayana numbers: T(n,k) = 5/(n+1)*binomial(n+1,k+4)*binomial(n+1,k-1).

A145599

Triangular array of generalized Narayana numbers: T(n,k) = 5/(n+1)*binomial(n+1,k+4)*binomial(n+1,k-1).

Terms

    a(0) =1a(1) =5a(2) =5a(3) =15a(4) =35a(5) =15a(6) =35a(7) =140a(8) =140a(9) =35a(10) =70a(11) =420a(12) =720a(13) =420a(14) =70a(15) =126a(16) =1050a(17) =2700a(18) =2700a(19) =1050a(20) =126a(21) =210a(22) =2310a(23) =8250a(24) =12375a(25) =8250a(26) =2310a(27) =210a(28) =330a(29) =4620

External references