A128144 - cp's OEIS frontend

A128144 Expansion of chi(-q)* chi(-q^2)* chi(-q^9)/( chi(-q^3)* chi(q^9)) in powers of q where chi() is a Ramanujan theta function.

n	a(n)
0	1
1	-1
2	-1
3	1
4	0
5	-1
6	0
7	1
8	1
9	-2
10	0
11	3
12	0
13	-2
14	0
15	3
16	0
17	-5
18	0
19	4
20	-2
21	-4
22	0
23	5
24	0
25	-7
26	2
27	7
28	0
29	-5
30	0
31	10
32	1
33	-12
34	0
35	10
36	0
37	-14
38	-4
39	17
40	0
41	-21
42	0
43	22
44	4
45	-24
46	0
47	34
48	0
49	-33
50	1
51	36
52	0
53	-45
54	0
55	45
56	-8
57	-52
58	0
59	55
60	0
61	-62
62	8
63	71
64	0
65	-70
66	0
67	88
68	2
69	-96
70	0
71	98
72	0
73	-122
74	-14
75	133
76	0
77	-148
78	0
79	163
80	14
81	-182
82	0
83	217
84	0
85	-216

[1, -1, -1, 1, 0, -1, 0, 1, 1, -2, 0, 3, 0, -2, 0, 3, 0, -5, 0, 4, -2, -4, 0, 5, 0, -7, 2, 7, 0, -5, 0, 10, 1, -12, 0, 10, 0, -14, -4, 17, 0, -21, 0, 22, 4, -24, 0, 34, 0, -33, 1, 36, 0, -45, 0, 45, -8, -52, 0, 55, 0, -62, 8, 71, 0, -70, 0, 88, 2, -96, 0, 98, 0, -122, -14, 133, 0, -148, 0, 163, 14, -182, 0, 217, 0, -216]

cp's OEIS Frontend

A128144 Expansion of chi(-q)* chi(-q^2)* chi(-q^9)/( chi(-q^3)* chi(q^9)) in powers of q where chi() is a Ramanujan theta function.

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