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.

A083207 Zumkeller or integer-perfect numbers: numbers n whose divisors can be partitioned into two disjoint sets with equal sum.

Table of values

n a(n)
1 6
2 12
3 20
4 24
5 28
6 30
7 40
8 42
9 48
10 54
11 56
12 60
13 66
14 70
15 78
16 80
17 84
18 88
19 90
20 96
21 102
22 104
23 108
24 112
25 114
26 120
27 126
28 132
29 138
30 140
31 150
32 156
33 160
34 168
35 174
36 176
37 180
38 186
39 192
40 198
41 204
42 208
43 210
44 216
45 220
46 222
47 224
48 228
49 234
50 240
51 246
52 252
53 258
54 260
55 264
56 270
57 272

List of values

[6, 12, 20, 24, 28, 30, 40, 42, 48, 54, 56, 60, 66, 70, 78, 80, 84, 88, 90, 96, 102, 104, 108, 112, 114, 120, 126, 132, 138, 140, 150, 156, 160, 168, 174, 176, 180, 186, 192, 198, 204, 208, 210, 216, 220, 222, 224, 228, 234, 240, 246, 252, 258, 260, 264, 270, 272]

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

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