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.

A328613 Starting with m = 1, p = 2 and x = n, iterate m -> m * p^valuation(x,p), x -> floor(x/p), p -> {the next prime after p}, until x is zero. Then a(n) = product of the values of m and p that were reached at the end of the iteration.

Table of values

n a(n)
0 2
1 3
2 10
3 5
4 20
5 5
6 42
7 21
8 56
9 7
10 14
11 7
12 84
13 21
14 14
15 7
16 112
17 7
18 126
19 63
20 28
21 7
22 14
23 7
24 168
25 21
26 14
27 7
28 28
29 7
30 330
31 165
32 1760
33 55
34 110
35 55
36 396
37 99
38 22
39 11
40 88
41 11
42 66
43 33
44 44
45 11
46 22
47 11
48 528
49 33
50 22
51 11
52 44
53 11
54 594
55 297
56 88
57 11
58 22
59 11
60 660
61 165
62 110
63 55
64 3520
65 55
66 66
67 33
68 44
69 11
70 22
71 11
72 792
73 99
74 22
75 11
76 44
77 11
78 66
79 33
80 176
81 11

List of values

[2, 3, 10, 5, 20, 5, 42, 21, 56, 7, 14, 7, 84, 21, 14, 7, 112, 7, 126, 63, 28, 7, 14, 7, 168, 21, 14, 7, 28, 7, 330, 165, 1760, 55, 110, 55, 396, 99, 22, 11, 88, 11, 66, 33, 44, 11, 22, 11, 528, 33, 22, 11, 44, 11, 594, 297, 88, 11, 22, 11, 660, 165, 110, 55, 3520, 55, 66, 33, 44, 11, 22, 11, 792, 99, 22, 11, 44, 11, 66, 33, 176, 11]