A046521 - cp's OEIS frontend

A046521 Array T(i,j) = binomial(-1/2-i,j)*(-4)^j, i,j >= 0 read by antidiagonals going down.

n	a(n)
0	1
1	2
2	1
3	6
4	6
5	1
6	20
7	30
8	10
9	1
10	70
11	140
12	70
13	14
14	1
15	252
16	630
17	420
18	126
19	18
20	1
21	924
22	2772
23	2310
24	924
25	198
26	22
27	1
28	3432
29	12012
30	12012
31	6006
32	1716
33	286
34	26
35	1
36	12870
37	51480
38	60060
39	36036
40	12870
41	2860
42	390
43	30
44	1
45	48620
46	218790
47	291720
48	204204
49	87516
50	24310

[1, 2, 1, 6, 6, 1, 20, 30, 10, 1, 70, 140, 70, 14, 1, 252, 630, 420, 126, 18, 1, 924, 2772, 2310, 924, 198, 22, 1, 3432, 12012, 12012, 6006, 1716, 286, 26, 1, 12870, 51480, 60060, 36036, 12870, 2860, 390, 30, 1, 48620, 218790, 291720, 204204, 87516, 24310]

cp's OEIS Frontend

A046521 Array T(i,j) = binomial(-1/2-i,j)*(-4)^j, i,j >= 0 read by antidiagonals going down.

Table of values

List of values