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.

A324278 Exponential untouchable numbers: numbers that are not the sum of aliquot exponential divisors of any number.

Table of values

n a(n)
1 1
2 4
3 8
4 9
5 16
6 20
7 25
8 27
9 28
10 32
11 40
12 44
13 45
14 49
15 52
16 54
17 63
18 64
19 68
20 75
21 76
22 81
23 88
24 92
25 96
26 99
27 104
28 108
29 116
30 117
31 121
32 124
33 125
34 128
35 136
36 144
37 147
38 148
39 152
40 153
41 160
42 164
43 169
44 171
45 172
46 175
47 176
48 184
49 188
50 189
51 192
52 196
53 200
54 207
55 208
56 212
57 216
58 224

List of values

[1, 4, 8, 9, 16, 20, 25, 27, 28, 32, 40, 44, 45, 49, 52, 54, 63, 64, 68, 75, 76, 81, 88, 92, 96, 99, 104, 108, 116, 117, 121, 124, 125, 128, 136, 144, 147, 148, 152, 153, 160, 164, 169, 171, 172, 175, 176, 184, 188, 189, 192, 196, 200, 207, 208, 212, 216, 224]

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

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