Triangle read by rows: T(n, m) = binomial(n + m - 3, m - 1)*(2 * m + n - 2) / m, for n>=1 and 1<=m<=n.
A177851
Triangle read by rows: T(n, m) = binomial(n + m - 3, m - 1)*(2 * m + n - 2) / m, for n>=1 and 1<=m<=n.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =5a(5) =7a(6) =4a(7) =9a(8) =16a(9) =25a(10) =5a(11) =14a(12) =30a(13) =55a(14) =91a(15) =6a(16) =20a(17) =50a(18) =105a(19) =196a(20) =336a(21) =7a(22) =27a(23) =77a(24) =182a(25) =378a(26) =714a(27) =1254a(28) =8a(29) =35
External references
- oeis: A177851