A138520 - cp's OEIS frontend

A138520 Expansion of 1 - q * (psi(q^5) / psi(q))^2 in powers of q where psi() is a Ramanujan theta function.

n	a(n)
0	1
1	-1
2	2
3	-3
4	6
5	-11
6	16
7	-24
8	38
9	-57
10	82
11	-117
12	168
13	-238
14	328
15	-448
16	614
17	-834
18	1114
19	-1480
20	1966
21	-2592
22	3384
23	-4398
24	5704
25	-7361
26	9436
27	-12045
28	15344
29	-19470
30	24576
31	-30922
32	38822
33	-48576
34	60548
35	-75259
36	93342
37	-115454
38	142360
39	-175104
40	214958
41	-263262

[1, -1, 2, -3, 6, -11, 16, -24, 38, -57, 82, -117, 168, -238, 328, -448, 614, -834, 1114, -1480, 1966, -2592, 3384, -4398, 5704, -7361, 9436, -12045, 15344, -19470, 24576, -30922, 38822, -48576, 60548, -75259, 93342, -115454, 142360, -175104, 214958, -263262]

cp's OEIS Frontend

A138520 Expansion of 1 - q * (psi(q^5) / psi(q))^2 in powers of q where psi() is a Ramanujan theta function.

Table of values

List of values