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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.

A031981 a(1) = 1, a(2) = 2, a(n) = smallest number not the sum of cubes of >= 1 distinct earlier terms.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 66, 67, 68, 69, 70, 71, 74, 75, 76, 77]

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

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