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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.

A326399 Expansion of Sum_{k>=1} k * x^k / (1 - x^(3*k)).

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 5
6 6
7 8
8 10
9 9
10 11
11 11
12 15
13 14
14 16
15 15
16 21
17 17
18 18
19 20
20 27
21 24
22 23
23 23
24 30
25 26
26 28
27 27
28 40
29 29
30 33
31 32
32 42
33 33
34 35
35 40
36 45
37 38
38 40
39 42
40 55
41 41
42 48
43 44
44 57
45 45
46 47
47 47
48 63
49 57
50 57
51 51
52 70
53 53
54 54
55 56
56 80
57 60
58 59
59 59
60 81
61 62
62 64
63 72
64 85
65 70
66 69
67 68
68 87
69 69
70 88

List of values

[1, 2, 3, 5, 5, 6, 8, 10, 9, 11, 11, 15, 14, 16, 15, 21, 17, 18, 20, 27, 24, 23, 23, 30, 26, 28, 27, 40, 29, 33, 32, 42, 33, 35, 40, 45, 38, 40, 42, 55, 41, 48, 44, 57, 45, 47, 47, 63, 57, 57, 51, 70, 53, 54, 56, 80, 60, 59, 59, 81, 62, 64, 72, 85, 70, 69, 68, 87, 69, 88]

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

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