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.

A135617 a(n) is the initial digit of n-th even perfect number.

Table of values

n a(n)
1 6
2 2
3 4
4 8
5 3
6 8
7 1
8 2
9 2
10 1
11 1
12 1
13 2
14 1
15 5
16 1
17 9
18 3
19 1
20 4
21 1
22 5
23 3
24 9
25 1
26 8
27 3
28 1
29 1
30 1
31 2
32 1
33 8
34 8
35 3
36 1
37 8
38 9
39 4
40 7
41 4
42 7
43 4
44 7
45 2
46 1
47 5
48 1

List of values

[6, 2, 4, 8, 3, 8, 1, 2, 2, 1, 1, 1, 2, 1, 5, 1, 9, 3, 1, 4, 1, 5, 3, 9, 1, 8, 3, 1, 1, 1, 2, 1, 8, 8, 3, 1, 8, 9, 4, 7, 4, 7, 4, 7, 2, 1, 5, 1]