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.

A123634 Upper half of Hankel determinant number wall for A004148.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 0
9 0
10 1
11 4
12 0
13 0
14 -1
15 1
16 8
17 4
18 -2
19 -1
20 -1
21 1
22 17
23 7
24 3
25 -3
26 -1
27 -1
28 1
29 37
30 25
31 6
32 -6
33 -4
34 0
35 0
36 1
37 82
38 121
39 -38
40 -4
41 -16
42 0
43 0
44 1
45 1
46 185
47 461
48 160
49 -104
50 -64
51 -16
52 4
53 1
54 1
55 1
56 423
57 2001
58 588
59 -144
60 -360
61 -60
62 -10
63 5
64 1
65 1
66 1
67 978
68 9225
69 360
70 1836
71 -2160
72 -450
73 -50
74 15
75 6
76 0
77 0
78 1

List of values

[1, 1, 1, 1, 1, 1, 1, 2, 0, 0, 1, 4, 0, 0, -1, 1, 8, 4, -2, -1, -1, 1, 17, 7, 3, -3, -1, -1, 1, 37, 25, 6, -6, -4, 0, 0, 1, 82, 121, -38, -4, -16, 0, 0, 1, 1, 185, 461, 160, -104, -64, -16, 4, 1, 1, 1, 423, 2001, 588, -144, -360, -60, -10, 5, 1, 1, 1, 978, 9225, 360, 1836, -2160, -450, -50, 15, 6, 0, 0, 1]