A209939 - cp's OEIS frontend

A209939 Expansion of (f(x) * f(x^3))^3 in powers of q where f() is a Ramanujan theta function.

n	a(n)
0	1
1	3
2	0
3	-2
4	9
5	0
6	-22
7	0
8	0
9	-26
10	-6
11	0
12	25
13	27
14	0
15	46
16	0
17	0
18	26
19	-66
20	0
21	22
22	0
23	0
24	-45
25	0
26	0
27	0
28	-78
29	0
30	74
31	-18
32	0
33	-122
34	0
35	0
36	-46
37	75
38	0
39	142
40	81
41	0
42	0
43	0
44	0
45	44
46	138
47	0
48	2
49	0
50	0
51	-194
52	0
53	0
54	-214
55	78
56	0
57	0
58	-198
59	0
60	121
61	0
62	0
63	-146
64	66
65	0
66	52
67	0
68	0
69	22

[1, 3, 0, -2, 9, 0, -22, 0, 0, -26, -6, 0, 25, 27, 0, 46, 0, 0, 26, -66, 0, 22, 0, 0, -45, 0, 0, 0, -78, 0, 74, -18, 0, -122, 0, 0, -46, 75, 0, 142, 81, 0, 0, 0, 0, 44, 138, 0, 2, 0, 0, -194, 0, 0, -214, 78, 0, 0, -198, 0, 121, 0, 0, -146, 66, 0, 52, 0, 0, 22]

cp's OEIS Frontend

A209939 Expansion of (f(x) * f(x^3))^3 in powers of q where f() is a Ramanujan theta function.

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List of values