cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A085261 Expansion of chi(x) / phi(x^2) in powers of x where phi(), chi() are Ramanujan theta functions.

Table of values

n a(n)
0 1
1 1
2 -2
3 -1
4 5
5 3
6 -9
7 -5
8 18
9 10
10 -30
11 -16
12 53
13 29
14 -85
15 -44
16 139
17 73
18 -215
19 -110
20 335
21 172
22 -502
23 -253
24 755
25 382
26 -1104
27 -550
28 1614
29 805
30 -2312
31 -1142
32 3305
33 1631
34 -4650
35 -2277
36 6525
37 3193
38 -9041
39 -4395
40 12486
41 6063
42 -17070
43 -8247
44 23255
45 11218
46 -31414
47 -15090
48 42289
49 20285

List of values

[1, 1, -2, -1, 5, 3, -9, -5, 18, 10, -30, -16, 53, 29, -85, -44, 139, 73, -215, -110, 335, 172, -502, -253, 755, 382, -1104, -550, 1614, 805, -2312, -1142, 3305, 1631, -4650, -2277, 6525, 3193, -9041, -4395, 12486, 6063, -17070, -8247, 23255, 11218, -31414, -15090, 42289, 20285]