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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.

A368872 Number of compositions (ordered partitions) of n into prime parts not greater than sqrt(n).

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 1
5 0
6 1
7 0
8 1
9 5
10 7
11 9
12 12
13 16
14 21
15 28
16 37
17 49
18 65
19 86
20 114
21 151
22 200
23 265
24 351
25 2652
26 3769
27 5413
28 7713
29 11031
30 15778
31 22513
32 32222
33 46004
34 65766
35 94004
36 134283
37 191992
38 274291
39 392041
40 560287
41 800615
42 1144320
43 1635193
44 2336976
45 3339800
46 4772784
47 6821096

List of values

[1, 0, 0, 0, 1, 0, 1, 0, 1, 5, 7, 9, 12, 16, 21, 28, 37, 49, 65, 86, 114, 151, 200, 265, 351, 2652, 3769, 5413, 7713, 11031, 15778, 22513, 32222, 46004, 65766, 94004, 134283, 191992, 274291, 392041, 560287, 800615, 1144320, 1635193, 2336976, 3339800, 4772784, 6821096]

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

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