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.

A138839 Concatenation of initial and final digits of n-th perfect number, divided by 2.

Table of values

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

List of values

[33, 14, 23, 44, 18, 43, 9, 14, 13, 8, 9, 9, 13, 9, 29, 9, 48, 18, 8, 24, 8, 28, 18, 48, 8, 43, 18, 9, 9, 8, 14, 9, 43, 44, 18, 8, 43, 48, 23]