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.

A336554 Odd numbers k such that rad(k) divides sigma(k).

Table of values

n a(n)
1 1
2 135
3 891
4 1521
5 3375
6 5733
7 10935
8 11907
9 41067
10 43875
11 84375
12 89667
13 92781
14 98865
15 107811
16 108927
17 154791
18 185625
19 200655
20 216513
21 226233
22 273375
23 274625
24 287469
25 307125
26 336141
27 416745
28 448335
29 480249
30 544635
31 557375
32 570375
33 590625
34 627669
35 628849
36 648675
37 692055
38 823875
39 885735
40 931095
41 968877
42 1071875
43 1108809
44 1131165

List of values

[1, 135, 891, 1521, 3375, 5733, 10935, 11907, 41067, 43875, 84375, 89667, 92781, 98865, 107811, 108927, 154791, 185625, 200655, 216513, 226233, 273375, 274625, 287469, 307125, 336141, 416745, 448335, 480249, 544635, 557375, 570375, 590625, 627669, 628849, 648675, 692055, 823875, 885735, 931095, 968877, 1071875, 1108809, 1131165]

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

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