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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.

A087181 Number partition numbers <= P(n) of the form 3*k+1 (P = A000041).

Table of values

n a(n)
0 1
1 2
2 2
3 2
4 2
5 3
6 3
7 3
8 4
9 4
10 4
11 4
12 4
13 4
14 4
15 4
16 4
17 4
18 5
19 6
20 6
21 6
22 6
23 7
24 7
25 7
26 7
27 8
28 9
29 9
30 9
31 9
32 9
33 9
34 10
35 10
36 11
37 12
38 12
39 12
40 12
41 12
42 12
43 12
44 13
45 14
46 14
47 14
48 14
49 14
50 15
51 15
52 15
53 15
54 16
55 17
56 17
57 17
58 17
59 18
60 18
61 18
62 19
63 19
64 20
65 20
66 20
67 20
68 20
69 20
70 20
71 20
72 21
73 22
74 22
75 22
76 22
77 23
78 23
79 23

List of values

[1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 9, 9, 9, 9, 9, 9, 10, 10, 11, 12, 12, 12, 12, 12, 12, 12, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 16, 17, 17, 17, 17, 18, 18, 18, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 21, 22, 22, 22, 22, 23, 23, 23]

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