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.

A154559 Triangle read by rows, A007318 * (A129186 * (A001006 * 0^(n-k))).

Table of values

n a(n)
1 1
2 2
3 0
4 3
5 2
6 0
7 4
8 6
9 4
10 0
11 5
12 12
13 16
14 9
15 0
16 6
17 20
18 40
19 45
20 21
21 0
22 7
23 30
24 80
25 135
26 126
27 51
28 0
29 8
30 42
31 140
32 315
33 441
34 357
35 127
36 0
37 9
38 56
39 224
40 630
41 1176
42 1428
43 1016
44 323
45 0
46 10
47 72
48 336
49 1134
50 2646
51 4284
52 4572
53 2907
54 835
55 0

List of values

[1, 2, 0, 3, 2, 0, 4, 6, 4, 0, 5, 12, 16, 9, 0, 6, 20, 40, 45, 21, 0, 7, 30, 80, 135, 126, 51, 0, 8, 42, 140, 315, 441, 357, 127, 0, 9, 56, 224, 630, 1176, 1428, 1016, 323, 0, 10, 72, 336, 1134, 2646, 4284, 4572, 2907, 835, 0]