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.

A133569 A133566 * A007318 as infinite lower triangular matrices.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 3
6 1
7 1
8 3
9 3
10 1
11 2
12 7
13 9
14 5
15 1
16 1
17 5
18 10
19 10
20 5
21 1
22 2
23 11
24 25
25 30
26 20
27 7
28 1
29 1
30 7
31 21
32 35
33 35
34 21
35 7
36 1
37 2
38 15
39 49
40 91
41 105
42 77
43 35
44 9
45 1
46 1
47 9
48 36
49 84
50 126
51 126
52 84
53 36
54 9
55 1

List of values

[1, 1, 1, 2, 3, 1, 1, 3, 3, 1, 2, 7, 9, 5, 1, 1, 5, 10, 10, 5, 1, 2, 11, 25, 30, 20, 7, 1, 1, 7, 21, 35, 35, 21, 7, 1, 2, 15, 49, 91, 105, 77, 35, 9, 1, 1, 9, 36, 84, 126, 126, 84, 36, 9, 1]