A202409 - cp's OEIS frontend

A202409 Triangle read by rows, n>=1, 1<=k<=n, T(n,k) = kbinomial(n,k)^3(n^2+n-kn-k+k^2)/((n-k+1)^2n).

n	a(n)
1	1
2	4
3	4
4	9
5	36
6	9
7	16
8	168
9	168
10	16
11	25
12	550
13	1400
14	550
15	25
16	36
17	1440
18	7500
19	7500
20	1440
21	36
22	49
23	3234
24	30135
25	61250
26	30135
27	3234
28	49
29	64
30	6496
31	98784
32	356720
33	356720
34	98784
35	6496
36	64
37	81
38	11988
39	278208
40	1629936
41	2889432
42	1629936
43	278208
44	11988
45	81

[1, 4, 4, 9, 36, 9, 16, 168, 168, 16, 25, 550, 1400, 550, 25, 36, 1440, 7500, 7500, 1440, 36, 49, 3234, 30135, 61250, 30135, 3234, 49, 64, 6496, 98784, 356720, 356720, 98784, 6496, 64, 81, 11988, 278208, 1629936, 2889432, 1629936, 278208, 11988, 81]

cp's OEIS Frontend

A202409 Triangle read by rows, n>=1, 1<=k<=n, T(n,k) = kbinomial(n,k)^3(n^2+n-kn-k+k^2)/((n-k+1)^2n).

Table of values

List of values

cp's OEIS Frontend

A202409 Triangle read by rows, n>=1, 1<=k<=n, T(n,k) = k*binomial(n,k)^3*(n^2+n-k*n-k+k^2)/((n-k+1)^2*n).

Table of values

List of values

A202409 Triangle read by rows, n>=1, 1<=k<=n, T(n,k) = kbinomial(n,k)^3(n^2+n-kn-k+k^2)/((n-k+1)^2n).