Generalized Narayana numbers, T(n, k) = 3/(n + 1)*binomial(n + 1, k + 2)*binomial(n + 1, k - 1), triangular array read by rows.

A145597

Generalized Narayana numbers, T(n, k) = 3/(n + 1)*binomial(n + 1, k + 2)*binomial(n + 1, k - 1), triangular array read by rows.

Terms

    a(0) =1a(1) =3a(2) =3a(3) =6a(4) =15a(5) =6a(6) =10a(7) =45a(8) =45a(9) =10a(10) =15a(11) =105a(12) =189a(13) =105a(14) =15a(15) =21a(16) =210a(17) =588a(18) =588a(19) =210a(20) =21a(21) =28a(22) =378a(23) =1512a(24) =2352a(25) =1512a(26) =378a(27) =28a(28) =36a(29) =630

External references