A275372 - cp's OEIS frontend

A275372 Expansion of f(-x) * f(-x^2)^4 / phi(x^2) in powers of x where phi(), f() are Ramanujan theta functions.

n	a(n)
0	1
1	-1
2	-7
3	6
4	20
5	-13
6	-34
7	15
8	53
9	-25
10	-91
11	52
12	135
13	-65
14	-180
15	82
16	253
17	-133
18	-343
19	160
20	449
21	-207
22	-603
23	306
24	780
25	-348
26	-979
27	438
28	1241
29	-600
30	-1557
31	703
32	1924
33	-890
34	-2375
35	1115
36	2910
37	-1300
38	-3535
39	1620
40	4318
41	-1993
42	-5198
43	2335
44	6180
45	-2783
46	-7420

[1, -1, -7, 6, 20, -13, -34, 15, 53, -25, -91, 52, 135, -65, -180, 82, 253, -133, -343, 160, 449, -207, -603, 306, 780, -348, -979, 438, 1241, -600, -1557, 703, 1924, -890, -2375, 1115, 2910, -1300, -3535, 1620, 4318, -1993, -5198, 2335, 6180, -2783, -7420]

cp's OEIS Frontend

A275372 Expansion of f(-x) * f(-x^2)^4 / phi(x^2) in powers of x where phi(), f() are Ramanujan theta functions.

Table of values

List of values