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.

A143595 Triangle read by rows, A000012 * (an infinite lower triangular matrix with 1's in the first column and the rest 2's); 1<=k<=n.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 4
6 2
7 4
8 6
9 4
10 2
11 5
12 8
13 6
14 4
15 2
16 6
17 10
18 8
19 6
20 4
21 2
22 7
23 12
24 10
25 8
26 6
27 4
28 2
29 8
30 14
31 12
32 10
33 8
34 6
35 4
36 2
37 9
38 16
39 14
40 12
41 10
42 8
43 6
44 4
45 2
46 10
47 18
48 16
49 14
50 12
51 10
52 8
53 6
54 4
55 2
56 11
57 20
58 18
59 16
60 14
61 12
62 10
63 8
64 6
65 4
66 2

List of values

[1, 2, 2, 3, 4, 2, 4, 6, 4, 2, 5, 8, 6, 4, 2, 6, 10, 8, 6, 4, 2, 7, 12, 10, 8, 6, 4, 2, 8, 14, 12, 10, 8, 6, 4, 2, 9, 16, 14, 12, 10, 8, 6, 4, 2, 10, 18, 16, 14, 12, 10, 8, 6, 4, 2, 11, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2]