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.

A113645 Numbers k such that sum of exponents in prime factorization of k (i.e., A001222(k)) is >= each prime divisor of k.

Table of values

n a(n)
1 4
2 8
3 12
4 16
5 18
6 24
7 27
8 32
9 36
10 48
11 54
12 64
13 72
14 80
15 81
16 96
17 108
18 120
19 128
20 144
21 160
22 162
23 180
24 192
25 200
26 216
27 240
28 243
29 256
30 270
31 288
32 300
33 320
34 324
35 360
36 384
37 400
38 405
39 432
40 448
41 450
42 480
43 486
44 500
45 512
46 540
47 576
48 600
49 640
50 648
51 672
52 675
53 720
54 729
55 750
56 768

List of values

[4, 8, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 80, 81, 96, 108, 120, 128, 144, 160, 162, 180, 192, 200, 216, 240, 243, 256, 270, 288, 300, 320, 324, 360, 384, 400, 405, 432, 448, 450, 480, 486, 500, 512, 540, 576, 600, 640, 648, 672, 675, 720, 729, 750, 768]

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

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