cp's OEIS Frontend

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.

A214421 Numbers not representable as the sum of three 12-gonal numbers.

Table of values

n a(n)
1 4
2 5
3 6
4 7
5 8
6 9
7 10
8 11
9 15
10 16
11 17
12 18
13 19
14 20
15 21
16 22
17 23
18 26
19 27
20 28
21 29
22 30
23 31
24 32
25 37
26 38
27 39
28 40
29 41
30 42
31 43
32 44
33 47
34 48
35 49
36 50
37 51
38 52
39 53
40 54
41 55
42 56
43 58
44 59
45 60
46 61
47 62
48 63
49 68
50 69
51 70
52 71
53 72
54 73
55 74
56 75
57 79
58 80
59 81
60 82
61 83
62 84
63 85
64 86
65 87
66 89

List of values

[4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 28, 29, 30, 31, 32, 37, 38, 39, 40, 41, 42, 43, 44, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 68, 69, 70, 71, 72, 73, 74, 75, 79, 80, 81, 82, 83, 84, 85, 86, 87, 89]