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.

A357400 Coefficients T(n,k) of x^n*y^k in the function A(x,y) that satisfies: y = Sum_{n=-oo..+oo} x^(2*n+1) * (1 - x^n)^(n+1) * A(x,y)^n, as a triangle read by rows with k = 0..n for each row index n >= 0.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 0
5 2
6 0
7 1
8 0
9 5
10 0
11 0
12 3
13 0
14 14
15 0
16 -2
17 0
18 10
19 0
20 42
21 0
22 8
23 -12
24 0
25 35
26 0
27 132
28 0
29 -14
30 36
31 -52
32 0
33 126
34 0
35 429
36 0
37 16
38 -76
39 148
40 -210
41 0
42 462
43 0
44 1430
45 0
46 -7
47 84
48 -354
49 590
50 -825
51 0
52 1716
53 0
54 4862
55 0
56 -24
57 -27
58 416
59 -1565
60 2322
61 -3199
62 0
63 6435
64 0
65 16796
66 0
67 103
68 -276
69 -120
70 1950
71 -6732
72 9086
73 -12320
74 0
75 24310
76 0
77 58786
78 0
79 -232
80 987
81 -1752
82 -560
83 8832
84 -28490
85 35464
86 -47268
87 0
88 92378
89 0
90 208012

List of values

[1, 0, 1, 0, 0, 2, 0, 1, 0, 5, 0, 0, 3, 0, 14, 0, -2, 0, 10, 0, 42, 0, 8, -12, 0, 35, 0, 132, 0, -14, 36, -52, 0, 126, 0, 429, 0, 16, -76, 148, -210, 0, 462, 0, 1430, 0, -7, 84, -354, 590, -825, 0, 1716, 0, 4862, 0, -24, -27, 416, -1565, 2322, -3199, 0, 6435, 0, 16796, 0, 103, -276, -120, 1950, -6732, 9086, -12320, 0, 24310, 0, 58786, 0, -232, 987, -1752, -560, 8832, -28490, 35464, -47268, 0, 92378, 0, 208012]