A364518 - cp's OEIS frontend

A364518 Square array read by ascending antidiagonals: T(n,k) = [x^(2*k)] ( (1 + x)^(n+2)/(1 - x)^(n-2) )^k for n, k >= 0.

n	a(n)
0	1
1	1
2	-2
3	1
4	0
5	6
6	1
7	6
8	-10
9	-20
10	1
11	16
12	70
13	0
14	70
15	1
16	30
17	630
18	924
19	198
20	-252
21	1
22	48
23	2310
24	28672
25	12870
26	0
27	924
28	1
29	70
30	6006
31	204204
32	1385670
33	184756
34	-4420
35	-3432
36	1
37	96
38	12870
39	860160
40	19122246
41	69206016
42	2704156
43	0
44	12870
45	1
46	126
47	24310
48	2704156
49	130378950
50	1848483780
51	3528923580
52	40116600
53	104006
54	-48620

[1, 1, -2, 1, 0, 6, 1, 6, -10, -20, 1, 16, 70, 0, 70, 1, 30, 630, 924, 198, -252, 1, 48, 2310, 28672, 12870, 0, 924, 1, 70, 6006, 204204, 1385670, 184756, -4420, -3432, 1, 96, 12870, 860160, 19122246, 69206016, 2704156, 0, 12870, 1, 126, 24310, 2704156, 130378950, 1848483780, 3528923580, 40116600, 104006, -48620]

cp's OEIS Frontend

A364518 Square array read by ascending antidiagonals: T(n,k) = [x^(2*k)] ( (1 + x)^(n+2)/(1 - x)^(n-2) )^k for n, k >= 0.

Table of values

List of values