Triangle read by rows: T(n, k) = n * k * (T(n-1, k-1) + T(n-1, k)) for k > 0 with initial values T(n, 0) = 1 and T(i, j) = 0 for j > i.
A371898
Triangle read by rows: T(n, k) = n * k * (T(n-1, k-1) + T(n-1, k)) for k > 0 with initial values T(n, 0) = 1 and T(i, j) = 0 for j > i.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =4a(6) =1a(7) =15a(8) =48a(9) =36a(10) =1a(11) =64a(12) =504a(13) =1008a(14) =576a(15) =1a(16) =325a(17) =5680a(18) =22680a(19) =31680a(20) =14400a(21) =1a(22) =1956a(23) =72060a(24) =510480a(25) =1304640a(26) =1382400a(27) =518400a(28) =1a(29) =13699
External references
- oeis: A371898