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.

A336641 Numbers k such that A007913(k) divides sigma(k) and A008833(k)-1 either divides A326127(k) (= sigma(k)-core(k)-k), or both are zero.

Table of values

n a(n)
1 6
2 24
3 28
4 96
5 120
6 150
7 294
8 384
9 496
10 1014
11 1536
12 3276
13 3750
14 3780
15 6144
16 8128
17 14406
18 20328
19 24576
20 32760
21 93750
22 98304
23 171366
24 306180
25 393216
26 705894
27 1241460
28 1572864
29 2343750
30 6291456
31 16380000
32 24800580
33 25165824
34 28960854
35 30387840
36 33550336
37 34588806
38 58593750
39 100663296
40 165143160
41 332226048
42 402653184

List of values

[6, 24, 28, 96, 120, 150, 294, 384, 496, 1014, 1536, 3276, 3750, 3780, 6144, 8128, 14406, 20328, 24576, 32760, 93750, 98304, 171366, 306180, 393216, 705894, 1241460, 1572864, 2343750, 6291456, 16380000, 24800580, 25165824, 28960854, 30387840, 33550336, 34588806, 58593750, 100663296, 165143160, 332226048, 402653184]

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

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