A226556 - cp's OEIS frontend

A226556 Expansion of f(x, -x^4) / f(-x^2, x^3) 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	-1
6	-1
7	-1
8	0
9	1
10	2
11	3
12	2
13	0
14	-2
15	-4
16	-4
17	-3
18	-1
19	3
20	6
21	7
22	5
23	0
24	-5
25	-9
26	-10
27	-7
28	-1
29	7
30	14
31	16
32	11
33	1
34	-11
35	-20
36	-22
37	-16
38	-2
39	15
40	29
41	33
42	23
43	2
44	-23
45	-41
46	-45
47	-32
48	-4
49	30
50	57
51	64
52	45
53	4
54	-43
55	-78
56	-86
57	-60
58	-7
59	57
60	107
61	119
62	83
63	8
64	-79

[1, 1, 1, 0, -1, -1, -1, -1, 0, 1, 2, 3, 2, 0, -2, -4, -4, -3, -1, 3, 6, 7, 5, 0, -5, -9, -10, -7, -1, 7, 14, 16, 11, 1, -11, -20, -22, -16, -2, 15, 29, 33, 23, 2, -23, -41, -45, -32, -4, 30, 57, 64, 45, 4, -43, -78, -86, -60, -7, 57, 107, 119, 83, 8, -79]

cp's OEIS Frontend

A226556 Expansion of f(x, -x^4) / f(-x^2, x^3) 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	-1
6	-1
7	-1
8	0
9	1
10	2
11	3
12	2
13	0
14	-2
15	-4
16	-4
17	-3
18	-1
19	3
20	6
21	7
22	5
23	0
24	-5
25	-9
26	-10
27	-7
28	-1
29	7
30	14
31	16
32	11
33	1
34	-11
35	-20
36	-22
37	-16
38	-2
39	15
40	29
41	33
42	23
43	2
44	-23
45	-41
46	-45
47	-32
48	-4
49	30
50	57
51	64
52	45
53	4
54	-43
55	-78
56	-86
57	-60
58	-7
59	57
60	107
61	119
62	83
63	8
64	-79

n	a(n)
0	1
1	1
2	1
3	0
4	-1
5	-1
6	-1
7	-1
8	0
9	1
10	2
11	3
12	2
13	0
14	-2
15	-4
16	-4
17	-3
18	-1
19	3
20	6
21	7
22	5
23	0
24	-5
25	-9
26	-10
27	-7
28	-1
29	7
30	14
31	16
32	11
33	1
34	-11
35	-20
36	-22
37	-16
38	-2
39	15
40	29
41	33
42	23
43	2
44	-23
45	-41
46	-45
47	-32
48	-4
49	30
50	57
51	64
52	45
53	4
54	-43
55	-78
56	-86
57	-60
58	-7
59	57
60	107
61	119
62	83
63	8
64	-79

n	a(n)
0	1
1	1
2	1
3	0
4	-1
5	-1
6	-1
7	-1
8	0
9	1
10	2
11	3
12	2
13	0
14	-2
15	-4
16	-4
17	-3
18	-1
19	3
20	6
21	7
22	5
23	0
24	-5
25	-9
26	-10
27	-7
28	-1
29	7
30	14
31	16
32	11
33	1
34	-11
35	-20
36	-22
37	-16
38	-2
39	15
40	29
41	33
42	23
43	2
44	-23
45	-41
46	-45
47	-32
48	-4
49	30
50	57
51	64
52	45
53	4
54	-43
55	-78
56	-86
57	-60
58	-7
59	57
60	107
61	119
62	83
63	8
64	-79