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.

A328572 Primorial base expansion of n converted into its prime product form, but with 1 subtracted from all nonzero digits: a(n) = A003557(A276086(n)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 3
6 1
7 1
8 1
9 1
10 3
11 3
12 5
13 5
14 5
15 5
16 15
17 15
18 25
19 25
20 25
21 25
22 75
23 75
24 125
25 125
26 125
27 125
28 375
29 375
30 1
31 1
32 1
33 1
34 3
35 3
36 1
37 1
38 1
39 1
40 3
41 3
42 5
43 5
44 5
45 5
46 15
47 15
48 25
49 25
50 25
51 25
52 75
53 75
54 125
55 125
56 125
57 125
58 375
59 375
60 7
61 7
62 7
63 7
64 21
65 21
66 7
67 7
68 7
69 7
70 21
71 21
72 35
73 35
74 35
75 35
76 105
77 105
78 175
79 175
80 175
81 175
82 525
83 525
84 875
85 875
86 875
87 875

List of values

[1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 3, 3, 5, 5, 5, 5, 15, 15, 25, 25, 25, 25, 75, 75, 125, 125, 125, 125, 375, 375, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 3, 3, 5, 5, 5, 5, 15, 15, 25, 25, 25, 25, 75, 75, 125, 125, 125, 125, 375, 375, 7, 7, 7, 7, 21, 21, 7, 7, 7, 7, 21, 21, 35, 35, 35, 35, 105, 105, 175, 175, 175, 175, 525, 525, 875, 875, 875, 875]