A228836 - cp's OEIS frontend

A228836 Triangle defined by T(n,k) = binomial(n^2, (n-k)*k), for n>=0, k=0..n, as read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	36
8	36
9	1
10	1
11	560
12	1820
13	560
14	1
15	1
16	12650
17	177100
18	177100
19	12650
20	1
21	1
22	376992
23	30260340
24	94143280
25	30260340
26	376992
27	1
28	1
29	13983816
30	8217822536
31	92263734836
32	92263734836
33	8217822536
34	13983816
35	1
36	1
37	621216192
38	3284214703056
39	159518999862720
40	488526937079580
41	159518999862720
42	3284214703056
43	621216192
44	1

[1, 1, 1, 1, 4, 1, 1, 36, 36, 1, 1, 560, 1820, 560, 1, 1, 12650, 177100, 177100, 12650, 1, 1, 376992, 30260340, 94143280, 30260340, 376992, 1, 1, 13983816, 8217822536, 92263734836, 92263734836, 8217822536, 13983816, 1, 1, 621216192, 3284214703056, 159518999862720, 488526937079580, 159518999862720, 3284214703056, 621216192, 1]

cp's OEIS Frontend

A228836 Triangle defined by T(n,k) = binomial(n^2, (n-k)*k), for n>=0, k=0..n, as read by rows.

Table of values

List of values