A121455 - cp's OEIS frontend

A121455 Expansion of q*(phi(-q)psi(q^4))^2 in powers of q where phi(), psi() are Ramanujan theta functions.

n	a(n)
1	1
2	-4
3	4
4	0
5	6
6	-16
7	8
8	0
9	13
10	-24
11	12
12	0
13	14
14	-32
15	24
16	0
17	18
18	-52
19	20
20	0
21	32
22	-48
23	24
24	0
25	31
26	-56
27	40
28	0
29	30
30	-96
31	32
32	0
33	48
34	-72
35	48
36	0
37	38
38	-80
39	56
40	0
41	42
42	-128
43	44
44	0
45	78
46	-96
47	48
48	0
49	57
50	-124
51	72
52	0
53	54
54	-160
55	72
56	0
57	80
58	-120
59	60
60	0
61	62
62	-128
63	104
64	0
65	84
66	-192
67	68
68	0
69	96
70	-192
71	72
72	0
73	74
74	-152

[1, -4, 4, 0, 6, -16, 8, 0, 13, -24, 12, 0, 14, -32, 24, 0, 18, -52, 20, 0, 32, -48, 24, 0, 31, -56, 40, 0, 30, -96, 32, 0, 48, -72, 48, 0, 38, -80, 56, 0, 42, -128, 44, 0, 78, -96, 48, 0, 57, -124, 72, 0, 54, -160, 72, 0, 80, -120, 60, 0, 62, -128, 104, 0, 84, -192, 68, 0, 96, -192, 72, 0, 74, -152]

cp's OEIS Frontend

A121455 Expansion of q*(phi(-q)psi(q^4))^2 in powers of q where phi(), psi() are Ramanujan theta functions.

Table of values

List of values