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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.

A290137 Number of compositions (ordered partitions) of n into nonprime squarefree parts (A000469).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 2
7 3
8 4
9 5
10 7
11 9
12 12
13 16
14 22
15 30
16 41
17 55
18 73
19 96
20 128
21 173
22 235
23 317
24 426
25 570
26 763
27 1023
28 1375
29 1848
30 2484
31 3337
32 4482
33 6017
34 8077
35 10843
36 14562
37 19560
38 26276
39 35292
40 47392
41 63632
42 85443
43 114741
44 154098
45 206957
46 277941
47 373254
48 501244
49 673121
50 903945
51 1213935
52 1630246
53 2189330

List of values

[1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 7, 9, 12, 16, 22, 30, 41, 55, 73, 96, 128, 173, 235, 317, 426, 570, 763, 1023, 1375, 1848, 2484, 3337, 4482, 6017, 8077, 10843, 14562, 19560, 26276, 35292, 47392, 63632, 85443, 114741, 154098, 206957, 277941, 373254, 501244, 673121, 903945, 1213935, 1630246, 2189330]

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

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