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.

A291968 Triangle read by rows: T(n,k) = (k+1) * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n).

Table of values

n a(n)
0 1
1 0
2 2
3 0
4 2
5 0
6 2
7 6
8 0
9 2
10 6
11 0
12 2
13 12
14 0
15 2
16 12
17 24
18 0
19 2
20 18
21 24
22 0
23 2
24 18
25 48
26 0
27 2
28 24
29 72
30 0
31 2
32 24
33 96
34 120
35 0
36 2
37 30
38 120
39 120
40 0
41 2
42 30
43 168
44 240
45 0
46 2
47 36
48 192
49 360
50 0
51 2
52 36
53 240
54 600
55 0
56 2
57 42
58 288
59 720
60 720
61 0
62 2
63 42
64 336
65 1080
66 720
67 0
68 2
69 48
70 384

List of values

[1, 0, 2, 0, 2, 0, 2, 6, 0, 2, 6, 0, 2, 12, 0, 2, 12, 24, 0, 2, 18, 24, 0, 2, 18, 48, 0, 2, 24, 72, 0, 2, 24, 96, 120, 0, 2, 30, 120, 120, 0, 2, 30, 168, 240, 0, 2, 36, 192, 360, 0, 2, 36, 240, 600, 0, 2, 42, 288, 720, 720, 0, 2, 42, 336, 1080, 720, 0, 2, 48, 384]