A368846 - cp's OEIS frontend

A368846 Triangle read by rows: T(n, k) = (-1)^(n + k)2binomial(2k - 1, n) binomial(2n + 1, 2k) for k > 0, and k^n for k = 0.

n	a(n)
0	1
1	0
2	6
3	0
4	0
5	30
6	0
7	0
8	-70
9	140
10	0
11	0
12	0
13	-840
14	630
15	0
16	0
17	0
18	924
19	-6930
20	2772
21	0
22	0
23	0
24	0
25	18018
26	-48048
27	12012
28	0
29	0
30	0
31	0
32	-12870
33	216216
34	-300300
35	51480
36	0
37	0
38	0
39	0
40	0
41	-350064
42	2042040
43	-1750320
44	218790
45	0
46	0
47	0
48	0
49	0
50	184756
51	-5542680
52	16628040
53	-9699690
54	923780

[1, 0, 6, 0, 0, 30, 0, 0, -70, 140, 0, 0, 0, -840, 630, 0, 0, 0, 924, -6930, 2772, 0, 0, 0, 0, 18018, -48048, 12012, 0, 0, 0, 0, -12870, 216216, -300300, 51480, 0, 0, 0, 0, 0, -350064, 2042040, -1750320, 218790, 0, 0, 0, 0, 0, 184756, -5542680, 16628040, -9699690, 923780]

cp's OEIS Frontend

A368846 Triangle read by rows: T(n, k) = (-1)^(n + k)2binomial(2k - 1, n) binomial(2n + 1, 2k) for k > 0, and k^n for k = 0.

Table of values

List of values

cp's OEIS Frontend

A368846 Triangle read by rows: T(n, k) = (-1)^(n + k)*2*binomial(2*k - 1, n)* binomial(2*n + 1, 2*k) for k > 0, and k^n for k = 0.

Table of values

List of values

A368846 Triangle read by rows: T(n, k) = (-1)^(n + k)2binomial(2k - 1, n) binomial(2n + 1, 2k) for k > 0, and k^n for k = 0.