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.

A305215 a(n) is the number of numbers whose largest prime power factor equals A000961(n).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 6
6 12
7 8
8 16
9 48
10 96
11 48
12 240
13 480
14 960
15 960
16 960
17 3840
18 7680
19 3072
20 18432
21 36864
22 73728
23 147456
24 147456
25 442368
26 884736
27 1769472
28 589824
29 4128768
30 8257536
31 16515072
32 33030144
33 16515072
34 82575360
35 165150720
36 330301440
37 660602880
38 1321205760

List of values

[1, 1, 2, 2, 6, 12, 8, 16, 48, 96, 48, 240, 480, 960, 960, 960, 3840, 7680, 3072, 18432, 36864, 73728, 147456, 147456, 442368, 884736, 1769472, 589824, 4128768, 8257536, 16515072, 33030144, 16515072, 82575360, 165150720, 330301440, 660602880, 1321205760]