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.

A048749 Factor n, divide sum of aliquot divisors by number of aliquot divisors; append n to sequence if quotient is integral and not previously seen.

Table of values

n a(n)
1 6
2 15
3 30
4 33
5 44
6 49
7 51
8 69
9 81
10 87
11 114
12 117
13 120
14 123
15 124
16 141
17 159
18 164
19 170
20 177
21 213
22 244
23 249
24 252
25 267
26 270
27 276
28 282
29 284
30 303
31 320
32 321
33 339
34 345
35 366
36 393
37 404
38 411
39 427
40 447
41 462
42 501
43 511
44 513
45 519
46 524
47 529
48 534
49 537
50 570
51 573
52 590
53 591
54 604

List of values

[6, 15, 30, 33, 44, 49, 51, 69, 81, 87, 114, 117, 120, 123, 124, 141, 159, 164, 170, 177, 213, 244, 249, 252, 267, 270, 276, 282, 284, 303, 320, 321, 339, 345, 366, 393, 404, 411, 427, 447, 462, 501, 511, 513, 519, 524, 529, 534, 537, 570, 573, 590, 591, 604]

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

Content is available under The OEIS End-User License Agreement.