A116915 - cp's OEIS frontend

A116915 Expansion of f(-x, -x^4)^2 / f(-x, -x^2) in powers of x where f(, ) is Ramanujan's general theta function.

n	a(n)
0	1
1	-1
2	1
3	0
4	-1
5	0
6	0
7	0
8	0
9	0
10	0
11	-1
12	0
13	0
14	0
15	1
16	0
17	0
18	-1
19	0
20	0
21	0
22	0
23	1
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	1
38	0
39	0
40	0
41	0
42	0
43	0
44	-1
45	0
46	0
47	0
48	0
49	1
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	-1
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	-1
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	0
91	0
92	0
93	0
94	0
95	-1
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	0
104	0

[1, -1, 1, 0, -1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A116915 Expansion of f(-x, -x^4)^2 / f(-x, -x^2) in powers of x where f(, ) is Ramanujan's general theta function.

Table of values

List of values

n	a(n)
0	1
1	-1
2	1
3	0
4	-1
5	0
6	0
7	0
8	0
9	0
10	0
11	-1
12	0
13	0
14	0
15	1
16	0
17	0
18	-1
19	0
20	0
21	0
22	0
23	1
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	1
38	0
39	0
40	0
41	0
42	0
43	0
44	-1
45	0
46	0
47	0
48	0
49	1
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	-1
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	-1
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	0
91	0
92	0
93	0
94	0
95	-1
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	0
104	0

n	a(n)
0	1
1	-1
2	1
3	0
4	-1
5	0
6	0
7	0
8	0
9	0
10	0
11	-1
12	0
13	0
14	0
15	1
16	0
17	0
18	-1
19	0
20	0
21	0
22	0
23	1
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	1
38	0
39	0
40	0
41	0
42	0
43	0
44	-1
45	0
46	0
47	0
48	0
49	1
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	-1
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	-1
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	0
91	0
92	0
93	0
94	0
95	-1
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	0
104	0

n	a(n)
0	1
1	-1
2	1
3	0
4	-1
5	0
6	0
7	0
8	0
9	0
10	0
11	-1
12	0
13	0
14	0
15	1
16	0
17	0
18	-1
19	0
20	0
21	0
22	0
23	1
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	1
38	0
39	0
40	0
41	0
42	0
43	0
44	-1
45	0
46	0
47	0
48	0
49	1
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	-1
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	0
77	0
78	-1
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	1
89	0
90	0
91	0
92	0
93	0
94	0
95	-1
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	0
104	0