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.

A016052 a(1) = 3; for n >= 1, a(n+1) = a(n) + sum of its digits.

Table of values

n a(n)
1 3
2 6
3 12
4 15
5 21
6 24
7 30
8 33
9 39
10 51
11 57
12 69
13 84
14 96
15 111
16 114
17 120
18 123
19 129
20 141
21 147
22 159
23 174
24 186
25 201
26 204
27 210
28 213
29 219
30 231
31 237
32 249
33 264
34 276
35 291
36 303
37 309
38 321
39 327
40 339
41 354
42 366
43 381
44 393
45 408
46 420
47 426
48 438
49 453
50 465
51 480
52 492

List of values

[3, 6, 12, 15, 21, 24, 30, 33, 39, 51, 57, 69, 84, 96, 111, 114, 120, 123, 129, 141, 147, 159, 174, 186, 201, 204, 210, 213, 219, 231, 237, 249, 264, 276, 291, 303, 309, 321, 327, 339, 354, 366, 381, 393, 408, 420, 426, 438, 453, 465, 480, 492]