A181204 - cp's OEIS frontend

A181204 T(n,k) = 0!1!2!...(k-1)! (nk)! k(k-1)n(n-1) / 2n!(n+1)!...(n+k-1)!

n	a(n)
1	0
2	0
3	0
4	0
5	4
6	0
7	0
8	30
9	30
10	0
11	0
12	168
13	756
14	168
15	0
16	0
17	840
18	16632
19	16632
20	840
21	0
22	0
23	3960
24	360360
25	1729728
26	360360
27	3960
28	0
29	0
30	18018
31	7876440
32	199536480
33	199536480
34	7876440
35	18018
36	0
37	0
38	80080
39	174594420
40	25241364720
41	140229804000
42	25241364720

[0, 0, 0, 0, 4, 0, 0, 30, 30, 0, 0, 168, 756, 168, 0, 0, 840, 16632, 16632, 840, 0, 0, 3960, 360360, 1729728, 360360, 3960, 0, 0, 18018, 7876440, 199536480, 199536480, 7876440, 18018, 0, 0, 80080, 174594420, 25241364720, 140229804000, 25241364720]

cp's OEIS Frontend

A181204 T(n,k) = 0!1!2!...(k-1)! (nk)! k(k-1)n(n-1) / 2n!(n+1)!...(n+k-1)!

Table of values

List of values

cp's OEIS Frontend

A181204 T(n,k) = 0!*1!*2!*...*(k-1)! *(n*k)! *k*(k-1)*n*(n-1) / 2*n!*(n+1)!*...*(n+k-1)!

Table of values

List of values

A181204 T(n,k) = 0!1!2!...(k-1)! (nk)! k(k-1)n(n-1) / 2n!(n+1)!...(n+k-1)!