Triangular array read by rows: a(n, k) is the number of ordered m-tuples of positive integers (x_1, ..., x_m) such that max x_i = n+1-m and there are k ones (0 <= k <= n).
A089246
Triangular array read by rows: a(n, k) is the number of ordered m-tuples of positive integers (x_1, ..., x_m) such that max x_i = n+1-m and there are k ones (0 <= k <= n).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =2a(7) =2a(8) =0a(9) =1a(10) =5a(11) =5a(12) =3a(13) =0a(14) =1a(15) =14a(16) =15a(17) =9a(18) =4a(19) =0a(20) =1a(21) =43a(22) =50a(23) =31a(24) =14a(25) =5a(26) =0a(27) =1a(28) =144a(29) =180
External references
- oeis: A089246