A258593 - cp's OEIS frontend

A258593 Expansion of (phi(x^2) * psi(x^2) / phi(-x)^2)^2 in powers of x where phi(), psi() are Ramanujan theta functions.

n	a(n)
0	1
1	8
2	46
3	208
4	805
5	2776
6	8742
7	25584
8	70450
9	184232
10	460832
11	1108848
12	2578295
13	5814992
14	12760598
15	27317056
16	57174768
17	117223008
18	235818894
19	466154416
20	906606234
21	1736736024
22	3280271526
23	6114139616
24	11255369609
25	20478505104
26	36849912318
27	65619691088

[1, 8, 46, 208, 805, 2776, 8742, 25584, 70450, 184232, 460832, 1108848, 2578295, 5814992, 12760598, 27317056, 57174768, 117223008, 235818894, 466154416, 906606234, 1736736024, 3280271526, 6114139616, 11255369609, 20478505104, 36849912318, 65619691088]

cp's OEIS Frontend

A258593 Expansion of (phi(x^2) * psi(x^2) / phi(-x)^2)^2 in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

List of values