A281731 - cp's OEIS frontend

A281731 Expansion of psi(-x) * psi(-x^3) / (phi(x^2) * phi(x^6)) in powers of x where phi(), psi() are Ramanujan theta functions.

n	a(n)
0	1
1	-1
2	-2
3	0
4	5
5	0
6	-10
7	2
8	18
9	0
10	-32
11	0
12	55
13	-5
14	-90
15	0
16	144
17	0
18	-226
19	10
20	346
21	0
22	-522
23	0
24	777
25	-18
26	-1138
27	0
28	1648
29	0
30	-2362
31	32
32	3348
33	0
34	-4704
35	0
36	6554
37	-55
38	-9056
39	0
40	12425
41	0
42	-16932
43	90
44	22922
45	0
46	-30848
47	0
48	41282
49	-144
50	-54946
51	0
52	72768
53	0
54	-95914

[1, -1, -2, 0, 5, 0, -10, 2, 18, 0, -32, 0, 55, -5, -90, 0, 144, 0, -226, 10, 346, 0, -522, 0, 777, -18, -1138, 0, 1648, 0, -2362, 32, 3348, 0, -4704, 0, 6554, -55, -9056, 0, 12425, 0, -16932, 90, 22922, 0, -30848, 0, 41282, -144, -54946, 0, 72768, 0, -95914]

cp's OEIS Frontend

A281731 Expansion of psi(-x) * psi(-x^3) / (phi(x^2) * phi(x^6)) in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

List of values