A257657 - cp's OEIS frontend

A257657 Expansion of f(-x, -x) * f(-x^6, -x^6) / f(x, x^2) in powers of x where f(,) is Ramanujan's general theta function.

n	a(n)
0	1
1	-3
2	2
3	1
4	-1
5	-1
6	3
7	-1
8	0
9	-2
10	-2
11	2
12	1
13	-3
14	3
15	4
16	-1
17	-3
18	1
19	0
20	-1
21	-2
22	0
23	3
24	1
25	-6
26	2
27	4
28	-4
29	-1
30	4
31	2
32	-1
33	-3
34	0
35	5
36	-1
37	-9
38	5
39	7
40	-4
41	-7
42	4
43	5
44	-3
45	-4
46	0
47	8
48	-1
49	-13
50	4
51	11
52	-7
53	-7
54	7
55	6
56	-1
57	-10
58	0
59	14
60	-1
61	-15
62	8
63	15
64	-10
65	-14
66	8
67	11
68	-7
69	-13
70	2
71	17

[1, -3, 2, 1, -1, -1, 3, -1, 0, -2, -2, 2, 1, -3, 3, 4, -1, -3, 1, 0, -1, -2, 0, 3, 1, -6, 2, 4, -4, -1, 4, 2, -1, -3, 0, 5, -1, -9, 5, 7, -4, -7, 4, 5, -3, -4, 0, 8, -1, -13, 4, 11, -7, -7, 7, 6, -1, -10, 0, 14, -1, -15, 8, 15, -10, -14, 8, 11, -7, -13, 2, 17]

cp's OEIS Frontend

A257657 Expansion of f(-x, -x) * f(-x^6, -x^6) / 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	-3
2	2
3	1
4	-1
5	-1
6	3
7	-1
8	0
9	-2
10	-2
11	2
12	1
13	-3
14	3
15	4
16	-1
17	-3
18	1
19	0
20	-1
21	-2
22	0
23	3
24	1
25	-6
26	2
27	4
28	-4
29	-1
30	4
31	2
32	-1
33	-3
34	0
35	5
36	-1
37	-9
38	5
39	7
40	-4
41	-7
42	4
43	5
44	-3
45	-4
46	0
47	8
48	-1
49	-13
50	4
51	11
52	-7
53	-7
54	7
55	6
56	-1
57	-10
58	0
59	14
60	-1
61	-15
62	8
63	15
64	-10
65	-14
66	8
67	11
68	-7
69	-13
70	2
71	17

n	a(n)
0	1
1	-3
2	2
3	1
4	-1
5	-1
6	3
7	-1
8	0
9	-2
10	-2
11	2
12	1
13	-3
14	3
15	4
16	-1
17	-3
18	1
19	0
20	-1
21	-2
22	0
23	3
24	1
25	-6
26	2
27	4
28	-4
29	-1
30	4
31	2
32	-1
33	-3
34	0
35	5
36	-1
37	-9
38	5
39	7
40	-4
41	-7
42	4
43	5
44	-3
45	-4
46	0
47	8
48	-1
49	-13
50	4
51	11
52	-7
53	-7
54	7
55	6
56	-1
57	-10
58	0
59	14
60	-1
61	-15
62	8
63	15
64	-10
65	-14
66	8
67	11
68	-7
69	-13
70	2
71	17

n	a(n)
0	1
1	-3
2	2
3	1
4	-1
5	-1
6	3
7	-1
8	0
9	-2
10	-2
11	2
12	1
13	-3
14	3
15	4
16	-1
17	-3
18	1
19	0
20	-1
21	-2
22	0
23	3
24	1
25	-6
26	2
27	4
28	-4
29	-1
30	4
31	2
32	-1
33	-3
34	0
35	5
36	-1
37	-9
38	5
39	7
40	-4
41	-7
42	4
43	5
44	-3
45	-4
46	0
47	8
48	-1
49	-13
50	4
51	11
52	-7
53	-7
54	7
55	6
56	-1
57	-10
58	0
59	14
60	-1
61	-15
62	8
63	15
64	-10
65	-14
66	8
67	11
68	-7
69	-13
70	2
71	17