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.

A384945 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A384942.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 5
9 0
10 1
11 3
12 11
13 -5
14 0
15 1
16 4
17 18
18 0
19 -135
20 0
21 1
22 5
23 26
24 16
25 -255
26 -110
27 0
28 1
29 6
30 35
31 44
32 -345
33 -540
34 3661
35 0
36 1
37 7
38 45
39 85
40 -389
41 -1230
42 5777
43 16440
44 0
45 1
46 8
47 56
48 140
49 -370
50 -2100
51 5918
52 40452
53 -1375
54 0
55 1
56 9
57 68
58 210
59 -270
60 -3049
61 3784
62 67356
63 86065
64 -827075
65 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 5, 0, 1, 3, 11, -5, 0, 1, 4, 18, 0, -135, 0, 1, 5, 26, 16, -255, -110, 0, 1, 6, 35, 44, -345, -540, 3661, 0, 1, 7, 45, 85, -389, -1230, 5777, 16440, 0, 1, 8, 56, 140, -370, -2100, 5918, 40452, -1375, 0, 1, 9, 68, 210, -270, -3049, 3784, 67356, 86065, -827075, 0]