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.

A138843 Concatenation of initial and final digits of n-th perfect number.

Table of values

n a(n)
1 66
2 28
3 46
4 88
5 36
6 86
7 18
8 28
9 26
10 16
11 18
12 18
13 26
14 18
15 58
16 18
17 96
18 36
19 16
20 48
21 16
22 56
23 36
24 96
25 16
26 86
27 36
28 18
29 18
30 16
31 28
32 18
33 86
34 88
35 36
36 16
37 86
38 96
39 46

List of values

[66, 28, 46, 88, 36, 86, 18, 28, 26, 16, 18, 18, 26, 18, 58, 18, 96, 36, 16, 48, 16, 56, 36, 96, 16, 86, 36, 18, 18, 16, 28, 18, 86, 88, 36, 16, 86, 96, 46]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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