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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.

A224709 The number of unordered partitions {a,b} of the even numbers 2n such that a and b are composite.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 1
6 2
7 2
8 3
9 4
10 4
11 4
12 6
13 5
14 6
15 8
16 7
17 8
18 10
19 8
20 10
21 12
22 11
23 11
24 14
25 13
26 13
27 16
28 14
29 15
30 19
31 15
32 18
33 20
34 17
35 20
36 22
37 20
38 21
39 24
40 22
41 22
42 27
43 23
44 24
45 30
46 25
47 26
48 30
49 27
50 30
51 33
52 30
53 30
54 34
55 32
56 33
57 37
58 33
59 33
60 41
61 33
62 36
63 42
64 36
65 40
66 43
67 39
68 40
69 44

List of values

[0, 0, 0, 1, 1, 2, 2, 3, 4, 4, 4, 6, 5, 6, 8, 7, 8, 10, 8, 10, 12, 11, 11, 14, 13, 13, 16, 14, 15, 19, 15, 18, 20, 17, 20, 22, 20, 21, 24, 22, 22, 27, 23, 24, 30, 25, 26, 30, 27, 30, 33, 30, 30, 34, 32, 33, 37, 33, 33, 41, 33, 36, 42, 36, 40, 43, 39, 40, 44]

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

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