A209940 - cp's OEIS frontend

A209940 Expansion of psi(x^4) * phi(-x^4)^4 / phi(x) in powers of x where phi(), psi() are Ramanujan theta function.

n	a(n)
0	1
1	-2
2	4
3	-8
4	7
5	-10
6	12
7	-8
8	18
9	-18
10	16
11	-24
12	21
13	-20
14	28
15	-32
16	20
17	-32
18	36
19	-24
20	42
21	-42
22	28
23	-48
24	57
25	-36
26	52
27	-40
28	36
29	-58
30	60
31	-56
32	48
33	-66
34	48
35	-72
36	74
37	-42
38	80
39	-80
40	61
41	-82
42	72
43	-56
44	90
45	-96
46	64
47	-72
48	98
49	-70
50	100
51	-104
52	64
53	-106
54	108
55	-72
56	114
57	-96

[1, -2, 4, -8, 7, -10, 12, -8, 18, -18, 16, -24, 21, -20, 28, -32, 20, -32, 36, -24, 42, -42, 28, -48, 57, -36, 52, -40, 36, -58, 60, -56, 48, -66, 48, -72, 74, -42, 80, -80, 61, -82, 72, -56, 90, -96, 64, -72, 98, -70, 100, -104, 64, -106, 108, -72, 114, -96]

cp's OEIS Frontend

A209940 Expansion of psi(x^4) * phi(-x^4)^4 / phi(x) in powers of x where phi(), psi() are Ramanujan theta function.

Table of values

List of values