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.

A284464 Number of compositions (ordered partitions) of n into squarefree divisors of n.

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 5
5 2
6 25
7 2
8 34
9 19
10 129
11 2
12 1046
13 2
14 742
15 450
16 1597
17 2
18 44254
19 2
20 27517
21 3321
22 29967
23 2
24 1872757
25 571
26 200390
27 18560
28 854850
29 2
30 154004511
31 2
32 3524578
33 226020
34 9262157
35 51886
36 3353855285
37 2
38 63346598
39 2044895
40 1255304727
41 2
42 185493291001
43 2
44 1282451595
45 345852035
46 2972038875
47 2
48 6006303471178

List of values

[1, 1, 2, 2, 5, 2, 25, 2, 34, 19, 129, 2, 1046, 2, 742, 450, 1597, 2, 44254, 2, 27517, 3321, 29967, 2, 1872757, 571, 200390, 18560, 854850, 2, 154004511, 2, 3524578, 226020, 9262157, 51886, 3353855285, 2, 63346598, 2044895, 1255304727, 2, 185493291001, 2, 1282451595, 345852035, 2972038875, 2, 6006303471178]

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

Content is available under The OEIS End-User License Agreement.