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.

A275791 Triangle T(n, m) appearing in the expansion of Jacobi's elliptic function cn(u, k) divided by cos(v) in terms of the Jacobi nome q and even powers of 2*cos(v) with v = u/((2/Pi)*K(k)).

Table of values

n a(n)
0 1
1 -4
2 1
3 4
4 -5
5 1
6 0
7 12
8 -7
9 1
10 4
11 -21
12 25
13 -9
14 1
15 -8
16 30
17 -63
18 42
19 -11
20 1
21 0
22 -44
23 131
24 -138
25 63
26 -13
27 1
28 0
29 72
30 -246
31 365
32 -253
33 88
34 -15
35 1
36 4
37 -85
38 425
39 -837
40 808
41 -416
42 117
43 -17
44 1
45 -4
46 85
47 -685
48 1734
49 -2200
50 1552
51 -635
52 150
53 -19
54 1
55 8
56 -134
57 1053
58 -3319
59 5326
60 -4888
61 2705
62 -918
63 187
64 -21
65 1

List of values

[1, -4, 1, 4, -5, 1, 0, 12, -7, 1, 4, -21, 25, -9, 1, -8, 30, -63, 42, -11, 1, 0, -44, 131, -138, 63, -13, 1, 0, 72, -246, 365, -253, 88, -15, 1, 4, -85, 425, -837, 808, -416, 117, -17, 1, -4, 85, -685, 1734, -2200, 1552, -635, 150, -19, 1, 8, -134, 1053, -3319, 5326, -4888, 2705, -918, 187, -21, 1]