A253625 - cp's OEIS frontend

A253625 Expansion of psi(q^2) * f(-q, q^2)^2 / f(-q, -q^5) in powers of q where psi(), f() are Ramanujan theta functions.

n	a(n)
0	1
1	-1
2	3
3	-1
4	3
5	0
6	3
7	-2
8	3
9	-1
10	0
11	0
12	3
13	-2
14	6
15	0
16	3
17	0
18	3
19	-2
20	0
21	-2
22	0
23	0
24	3
25	-1
26	6
27	-1
28	6
29	0
30	0
31	-2
32	3
33	0
34	0
35	0
36	3
37	-2
38	6
39	-2
40	0
41	0
42	6
43	-2
44	0
45	0
46	0
47	0
48	3
49	-3
50	3
51	0
52	6
53	0
54	3
55	0
56	6
57	-2
58	0
59	0
60	0
61	-2
62	6
63	-2
64	3
65	0
66	0
67	-2
68	0
69	0
70	0
71	0
72	3
73	-2
74	6
75	-1
76	6
77	0
78	6
79	-2

[1, -1, 3, -1, 3, 0, 3, -2, 3, -1, 0, 0, 3, -2, 6, 0, 3, 0, 3, -2, 0, -2, 0, 0, 3, -1, 6, -1, 6, 0, 0, -2, 3, 0, 0, 0, 3, -2, 6, -2, 0, 0, 6, -2, 0, 0, 0, 0, 3, -3, 3, 0, 6, 0, 3, 0, 6, -2, 0, 0, 0, -2, 6, -2, 3, 0, 0, -2, 0, 0, 0, 0, 3, -2, 6, -1, 6, 0, 6, -2]

cp's OEIS Frontend

A253625 Expansion of psi(q^2) * f(-q, q^2)^2 / f(-q, -q^5) in powers of q where psi(), f() are Ramanujan theta functions.

Table of values

List of values

n	a(n)
0	1
1	-1
2	3
3	-1
4	3
5	0
6	3
7	-2
8	3
9	-1
10	0
11	0
12	3
13	-2
14	6
15	0
16	3
17	0
18	3
19	-2
20	0
21	-2
22	0
23	0
24	3
25	-1
26	6
27	-1
28	6
29	0
30	0
31	-2
32	3
33	0
34	0
35	0
36	3
37	-2
38	6
39	-2
40	0
41	0
42	6
43	-2
44	0
45	0
46	0
47	0
48	3
49	-3
50	3
51	0
52	6
53	0
54	3
55	0
56	6
57	-2
58	0
59	0
60	0
61	-2
62	6
63	-2
64	3
65	0
66	0
67	-2
68	0
69	0
70	0
71	0
72	3
73	-2
74	6
75	-1
76	6
77	0
78	6
79	-2

n	a(n)
0	1
1	-1
2	3
3	-1
4	3
5	0
6	3
7	-2
8	3
9	-1
10	0
11	0
12	3
13	-2
14	6
15	0
16	3
17	0
18	3
19	-2
20	0
21	-2
22	0
23	0
24	3
25	-1
26	6
27	-1
28	6
29	0
30	0
31	-2
32	3
33	0
34	0
35	0
36	3
37	-2
38	6
39	-2
40	0
41	0
42	6
43	-2
44	0
45	0
46	0
47	0
48	3
49	-3
50	3
51	0
52	6
53	0
54	3
55	0
56	6
57	-2
58	0
59	0
60	0
61	-2
62	6
63	-2
64	3
65	0
66	0
67	-2
68	0
69	0
70	0
71	0
72	3
73	-2
74	6
75	-1
76	6
77	0
78	6
79	-2

n	a(n)
0	1
1	-1
2	3
3	-1
4	3
5	0
6	3
7	-2
8	3
9	-1
10	0
11	0
12	3
13	-2
14	6
15	0
16	3
17	0
18	3
19	-2
20	0
21	-2
22	0
23	0
24	3
25	-1
26	6
27	-1
28	6
29	0
30	0
31	-2
32	3
33	0
34	0
35	0
36	3
37	-2
38	6
39	-2
40	0
41	0
42	6
43	-2
44	0
45	0
46	0
47	0
48	3
49	-3
50	3
51	0
52	6
53	0
54	3
55	0
56	6
57	-2
58	0
59	0
60	0
61	-2
62	6
63	-2
64	3
65	0
66	0
67	-2
68	0
69	0
70	0
71	0
72	3
73	-2
74	6
75	-1
76	6
77	0
78	6
79	-2