A135211 - cp's OEIS frontend

A135211 Expansion of psi(-x) / psi(-x^3) in powers of x where psi() is a Ramanujan theta function.

n	a(n)
0	1
1	-1
2	0
3	0
4	-1
5	0
6	1
7	-1
8	0
9	2
10	-1
11	0
12	2
13	-2
14	0
15	2
16	-3
17	0
18	3
19	-3
20	0
21	4
22	-4
23	0
24	5
25	-6
26	0
27	6
28	-7
29	0
30	7
31	-8
32	0
33	10
34	-10
35	0
36	13
37	-13
38	0
39	14
40	-16
41	0
42	17
43	-18
44	0
45	22
46	-22
47	0
48	26
49	-28
50	0
51	30
52	-33
53	0
54	36
55	-38
56	0
57	44
58	-45
59	0
60	52
61	-55
62	0
63	60
64	-65
65	0
66	70
67	-74
68	0
69	84
70	-87
71	0
72	99
73	-104
74	0
75	112
76	-121
77	0
78	131
79	-138
80	0
81	156
82	-160

[1, -1, 0, 0, -1, 0, 1, -1, 0, 2, -1, 0, 2, -2, 0, 2, -3, 0, 3, -3, 0, 4, -4, 0, 5, -6, 0, 6, -7, 0, 7, -8, 0, 10, -10, 0, 13, -13, 0, 14, -16, 0, 17, -18, 0, 22, -22, 0, 26, -28, 0, 30, -33, 0, 36, -38, 0, 44, -45, 0, 52, -55, 0, 60, -65, 0, 70, -74, 0, 84, -87, 0, 99, -104, 0, 112, -121, 0, 131, -138, 0, 156, -160]

cp's OEIS Frontend

A135211 Expansion of psi(-x) / psi(-x^3) in powers of x where psi() is a Ramanujan theta function.

Table of values

List of values