A228831 - cp's OEIS frontend

A228831 Expansion of psi(x)^2 * phi(-x^2)^4 in powers of x where phi(), psi() are Ramanujan theta functions.

n	a(n)
0	1
1	2
2	-7
3	-14
4	18
5	32
6	-21
7	-14
8	16
9	-30
10	-14
11	-14
12	-15
13	66
14	48
15	82
16	-28
17	-160
18	66
19	-32
20	-95
21	36
22	-30
23	128
24	-14
25	-94
26	64
27	18
28	98
29	98
30	105
31	-92
32	-112
33	-96
34	-206
35	-64
36	-28
37	226
38	-126
39	-46
40	320
41	32
42	27
43	-142
44	208
45	-30
46	-60
47	64
48	-206
49	322
50	-16
51	-28
52	-48
53	-224

[1, 2, -7, -14, 18, 32, -21, -14, 16, -30, -14, -14, -15, 66, 48, 82, -28, -160, 66, -32, -95, 36, -30, 128, -14, -94, 64, 18, 98, 98, 105, -92, -112, -96, -206, -64, -28, 226, -126, -46, 320, 32, 27, -142, 208, -30, -60, 64, -206, 322, -16, -28, -48, -224]

cp's OEIS Frontend

A228831 Expansion of psi(x)^2 * phi(-x^2)^4 in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

List of values