A138527 - cp's OEIS frontend

A138527 Expansion of phi(-q) / phi(-q^5) in powers of q where phi() is a Ramanujan theta function.

n	a(n)
0	1
1	-2
2	0
3	0
4	2
5	2
6	-4
7	0
8	0
9	2
10	4
11	-8
12	0
13	0
14	4
15	8
16	-14
17	0
18	0
19	8
20	14
21	-24
22	0
23	0
24	12
25	22
26	-40
27	0
28	0
29	20
30	36
31	-64
32	0
33	0
34	32
35	56
36	-98
37	0
38	0
39	48
40	84
41	-148
42	0
43	0
44	72
45	126
46	-220
47	0
48	0
49	106
50	184
51	-320
52	0
53	0
54	152
55	264
56	-460
57	0
58	0
59	216
60	376
61	-652
62	0
63	0
64	306
65	528
66	-912
67	0
68	0
69	424
70	732
71	-1264
72	0
73	0
74	584
75	1008

[1, -2, 0, 0, 2, 2, -4, 0, 0, 2, 4, -8, 0, 0, 4, 8, -14, 0, 0, 8, 14, -24, 0, 0, 12, 22, -40, 0, 0, 20, 36, -64, 0, 0, 32, 56, -98, 0, 0, 48, 84, -148, 0, 0, 72, 126, -220, 0, 0, 106, 184, -320, 0, 0, 152, 264, -460, 0, 0, 216, 376, -652, 0, 0, 306, 528, -912, 0, 0, 424, 732, -1264, 0, 0, 584, 1008]

cp's OEIS Frontend

A138527 Expansion of phi(-q) / phi(-q^5) in powers of q where phi() is a Ramanujan theta function.

Table of values

List of values