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.

A381402 Numbers k such that the set P of bases and exponents in the prime factorization of k (including exponents = 1) contains all numbers from min(P) to max(P).

Table of values

n a(n)
1 2
2 4
3 6
4 8
5 9
6 12
7 18
8 24
9 27
10 36
11 48
12 54
13 72
14 81
15 108
16 144
17 162
18 216
19 240
20 324
21 432
22 625
23 648
24 720
25 810
26 1200
27 1296
28 1620
29 2000
30 2025
31 2160
32 2592
33 3125
34 3240
35 3600
36 3750
37 3888
38 4050
39 5000
40 5625
41 6000
42 6480
43 7500
44 8100
45 10125
46 10800
47 11250
48 12960
49 15000
50 15625

List of values

[2, 4, 6, 8, 9, 12, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 240, 324, 432, 625, 648, 720, 810, 1200, 1296, 1620, 2000, 2025, 2160, 2592, 3125, 3240, 3600, 3750, 3888, 4050, 5000, 5625, 6000, 6480, 7500, 8100, 10125, 10800, 11250, 12960, 15000, 15625]