A117179 - cp's OEIS frontend

A117179 Riordan array ((1-x^2)/(1+x^2)^2,x/(1+x^2)).

n	a(n)
0	1
1	0
2	1
3	-3
4	0
5	1
6	0
7	-4
8	0
9	1
10	5
11	0
12	-5
13	0
14	1
15	0
16	9
17	0
18	-6
19	0
20	1
21	-7
22	0
23	14
24	0
25	-7
26	0
27	1
28	0
29	-16
30	0
31	20
32	0
33	-8
34	0
35	1
36	9
37	0
38	-30
39	0
40	27
41	0
42	-9
43	0
44	1
45	0
46	25
47	0
48	-50
49	0
50	35
51	0
52	-10
53	0
54	1
55	-11
56	0
57	55
58	0
59	-77
60	0
61	44
62	0
63	-11
64	0
65	1

[1, 0, 1, -3, 0, 1, 0, -4, 0, 1, 5, 0, -5, 0, 1, 0, 9, 0, -6, 0, 1, -7, 0, 14, 0, -7, 0, 1, 0, -16, 0, 20, 0, -8, 0, 1, 9, 0, -30, 0, 27, 0, -9, 0, 1, 0, 25, 0, -50, 0, 35, 0, -10, 0, 1, -11, 0, 55, 0, -77, 0, 44, 0, -11, 0, 1]

cp's OEIS Frontend

A117179 Riordan array ((1-x^2)/(1+x^2)^2,x/(1+x^2)).

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	-3
4	0
5	1
6	0
7	-4
8	0
9	1
10	5
11	0
12	-5
13	0
14	1
15	0
16	9
17	0
18	-6
19	0
20	1
21	-7
22	0
23	14
24	0
25	-7
26	0
27	1
28	0
29	-16
30	0
31	20
32	0
33	-8
34	0
35	1
36	9
37	0
38	-30
39	0
40	27
41	0
42	-9
43	0
44	1
45	0
46	25
47	0
48	-50
49	0
50	35
51	0
52	-10
53	0
54	1
55	-11
56	0
57	55
58	0
59	-77
60	0
61	44
62	0
63	-11
64	0
65	1

n	a(n)
0	1
1	0
2	1
3	-3
4	0
5	1
6	0
7	-4
8	0
9	1
10	5
11	0
12	-5
13	0
14	1
15	0
16	9
17	0
18	-6
19	0
20	1
21	-7
22	0
23	14
24	0
25	-7
26	0
27	1
28	0
29	-16
30	0
31	20
32	0
33	-8
34	0
35	1
36	9
37	0
38	-30
39	0
40	27
41	0
42	-9
43	0
44	1
45	0
46	25
47	0
48	-50
49	0
50	35
51	0
52	-10
53	0
54	1
55	-11
56	0
57	55
58	0
59	-77
60	0
61	44
62	0
63	-11
64	0
65	1

n	a(n)
0	1
1	0
2	1
3	-3
4	0
5	1
6	0
7	-4
8	0
9	1
10	5
11	0
12	-5
13	0
14	1
15	0
16	9
17	0
18	-6
19	0
20	1
21	-7
22	0
23	14
24	0
25	-7
26	0
27	1
28	0
29	-16
30	0
31	20
32	0
33	-8
34	0
35	1
36	9
37	0
38	-30
39	0
40	27
41	0
42	-9
43	0
44	1
45	0
46	25
47	0
48	-50
49	0
50	35
51	0
52	-10
53	0
54	1
55	-11
56	0
57	55
58	0
59	-77
60	0
61	44
62	0
63	-11
64	0
65	1