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.

A154558 Triangle read by rows: binomial(n-1,k-1)*A001006(k).

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 4
6 4
7 1
8 6
9 12
10 9
11 1
12 8
13 24
14 36
15 21
16 1
17 10
18 40
19 90
20 105
21 51
22 1
23 12
24 60
25 180
26 315
27 306
28 127
29 1
30 14
31 84
32 315
33 735
34 1071
35 889
36 323
37 1
38 16
39 112
40 504
41 1470
42 2856
43 3556
44 2584
45 835
46 1
47 18
48 144
49 756
50 2646
51 6426
52 10668
53 11628
54 7515
55 2188

List of values

[1, 1, 2, 1, 4, 4, 1, 6, 12, 9, 1, 8, 24, 36, 21, 1, 10, 40, 90, 105, 51, 1, 12, 60, 180, 315, 306, 127, 1, 14, 84, 315, 735, 1071, 889, 323, 1, 16, 112, 504, 1470, 2856, 3556, 2584, 835, 1, 18, 144, 756, 2646, 6426, 10668, 11628, 7515, 2188]