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.

A330648 a(1) = 1 and for any n > 1, if A330647(n) divides a(n-1) then a(n) = a(n-1) / A330647(n), otherwise a(n) = a(n-1) * A330647(n).

Table of values

n a(n)
1 1
2 2
3 6
4 30
5 5
6 20
7 140
8 1260
9 126
10 1386
11 18018
12 1287
13 10296
14 858
15 14586
16 277134
17 12597
18 201552
19 4635696
20 193154
21 2897310
22 111435
23 3120180
24 156009
25 7429
26 133722
27 3343050
28 96948450
29 3231615
30 100180065
31 3205762080
32 94287120
33 3488623440
34 91805880
35 2295147

List of values

[1, 2, 6, 30, 5, 20, 140, 1260, 126, 1386, 18018, 1287, 10296, 858, 14586, 277134, 12597, 201552, 4635696, 193154, 2897310, 111435, 3120180, 156009, 7429, 133722, 3343050, 96948450, 3231615, 100180065, 3205762080, 94287120, 3488623440, 91805880, 2295147]