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.

A334568 Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(-Sum_{j=1..k} x^j/j).

Table of values

n a(n)
0 1
1 1
2 -1
3 1
4 -1
5 1
6 1
7 -1
8 0
9 -1
10 1
11 -1
12 0
13 2
14 1
15 1
16 -1
17 0
18 0
19 -2
20 -1
21 1
22 -1
23 0
24 0
25 6
26 -6
27 1
28 1
29 -1
30 0
31 0
32 0
33 -6
34 16
35 -1
36 1
37 -1
38 0
39 0
40 0
41 24
42 -24
43 20
44 1
45 1
46 -1
47 0
48 0
49 0
50 0
51 -24
52 -120
53 -132
54 -1
55 1
56 -1
57 0
58 0
59 0
60 0
61 120
62 -120
63 540
64 -28
65 1
66 1
67 -1
68 0
69 0
70 0
71 0
72 0
73 -120
74 -720
75 1764
76 1216
77 -1

List of values

[1, 1, -1, 1, -1, 1, 1, -1, 0, -1, 1, -1, 0, 2, 1, 1, -1, 0, 0, -2, -1, 1, -1, 0, 0, 6, -6, 1, 1, -1, 0, 0, 0, -6, 16, -1, 1, -1, 0, 0, 0, 24, -24, 20, 1, 1, -1, 0, 0, 0, 0, -24, -120, -132, -1, 1, -1, 0, 0, 0, 0, 120, -120, 540, -28, 1, 1, -1, 0, 0, 0, 0, 0, -120, -720, 1764, 1216, -1]