A364506 - cp's OEIS frontend

A364506 Square array read by ascending antidiagonals: T(n,k) = (2k)!/k! ( (2nk)! * ((2n+1)k)! )/( (nk)!^2 ((n+1)*k)!^2 ).

n	a(n)
0	1
1	1
2	2
3	1
4	6
5	6
6	1
7	40
8	90
9	20
10	1
11	350
12	5880
13	1680
14	70
15	1
16	3528
17	594594
18	1101100
19	34650
20	252
21	1
22	38808
23	75088728
24	1299170600
25	229265400
26	756756
27	924
28	1
29	453024
30	10861066216
31	2066315135040
32	3164045050530
33	50678855040
34	17153136
35	3432
36	1
37	5521230
38	1721929279200
39	3943172216808000

[1, 1, 2, 1, 6, 6, 1, 40, 90, 20, 1, 350, 5880, 1680, 70, 1, 3528, 594594, 1101100, 34650, 252, 1, 38808, 75088728, 1299170600, 229265400, 756756, 924, 1, 453024, 10861066216, 2066315135040, 3164045050530, 50678855040, 17153136, 3432, 1, 5521230, 1721929279200, 3943172216808000]

cp's OEIS Frontend

A364506 Square array read by ascending antidiagonals: T(n,k) = (2k)!/k! ( (2nk)! * ((2n+1)k)! )/( (nk)!^2 ((n+1)*k)!^2 ).

Table of values

List of values

cp's OEIS Frontend

A364506 Square array read by ascending antidiagonals: T(n,k) = (2*k)!/k! * ( (2*n*k)! * ((2*n+1)*k)! )/( (n*k)!^2 * ((n+1)*k)!^2 ).

Table of values

List of values

A364506 Square array read by ascending antidiagonals: T(n,k) = (2k)!/k! ( (2nk)! * ((2n+1)k)! )/( (nk)!^2 ((n+1)*k)!^2 ).