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A229723 Expansion of psi(q) * chi(-q^3) * phi(-q^6) in powers of q where phi(), psi(), chi() are Ramanujan theta functions.

Table of values

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

List of values

[1, 1, 0, 0, -1, 0, -2, -2, 0, -2, 2, 0, 0, 0, 0, 4, -1, 0, 0, 0, 0, 0, 2, 0, 2, 3, 0, 0, -2, 0, 0, -2, 0, -4, 0, 0, 2, 0, 0, 0, -2, 0, -4, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, -2, -4, 0, 0, 2, 0, 4, 0, 0, 4, -1, 0, 0, 0, 0, 0, 4, 0, 0, 2, 0, 0, 0, 0, 0, -2, 0, -2]

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