A164271 - cp's OEIS frontend

A164271 Expansion of ( f(-q^2) * f(q^3) * f(-q^6) / f(q)^3 )^2 in powers of q where f() is a Ramanujan theta function.

n	a(n)
0	1
1	-6
2	25
3	-84
4	248
5	-666
6	1662
7	-3912
8	8774
9	-18894
10	39289
11	-79248
12	155612
13	-298338
14	559812
15	-1030224
16	1862647
17	-3313494
18	5807096
19	-10037796
20	17129888
21	-28886052
22	48170178
23	-79492824
24	129900206
25	-210314976
26	337545438
27	-537278124
28	848509124

[1, -6, 25, -84, 248, -666, 1662, -3912, 8774, -18894, 39289, -79248, 155612, -298338, 559812, -1030224, 1862647, -3313494, 5807096, -10037796, 17129888, -28886052, 48170178, -79492824, 129900206, -210314976, 337545438, -537278124, 848509124]

cp's OEIS Frontend

A164271 Expansion of ( f(-q^2) * f(q^3) * f(-q^6) / f(q)^3 )^2 in powers of q where f() is a Ramanujan theta function.

Table of values

List of values