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.

A329311 a(n) is the product of the numbers k such that a(n-2*k) = a(n-k) and 0 < n-2*k < n-k < n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 2
7 3
8 1
9 1
10 1
11 1
12 8
13 10
14 90
15 42
16 42
17 56
18 56
19 72
20 9
21 10
22 1
23 1
24 1
25 1
26 2
27 2
28 3
29 8
30 1
31 1
32 1
33 11
34 24
35 780
36 1092
37 7644
38 11760
39 11760
40 311040
41 2736
42 64600
43 420
44 420
45 462
46 157080
47 10626
48 483
49 210672
50 20
51 420
52 462
53 462
54 506
55 23
56 624
57 27
58 5292
59 45472
60 812

List of values

[1, 1, 1, 1, 2, 2, 3, 1, 1, 1, 1, 8, 10, 90, 42, 42, 56, 56, 72, 9, 10, 1, 1, 1, 1, 2, 2, 3, 8, 1, 1, 1, 11, 24, 780, 1092, 7644, 11760, 11760, 311040, 2736, 64600, 420, 420, 462, 157080, 10626, 483, 210672, 20, 420, 462, 462, 506, 23, 624, 27, 5292, 45472, 812]