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.

A084228 a(1)=1, a(2)=2; thereafter a(n) = sum of digits of (a(1)+a(2)+a(3)+...+a(n-1)).

Table of values

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

List of values

[1, 2, 3, 6, 3, 6, 3, 6, 3, 6, 12, 6, 12, 15, 12, 15, 3, 6, 3, 6, 12, 6, 12, 15, 12, 15, 3, 6, 3, 6, 12, 6, 12, 15, 12, 15, 12, 6, 12, 6, 12, 15, 12, 15, 12, 15, 12, 6, 12, 15, 12, 15, 12, 15, 12, 15, 12, 15, 12, 15, 21, 15, 12, 15, 12, 15, 21, 24, 12, 15, 12, 15, 21, 24, 12, 15, 21, 15]