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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.

A061535 a(n) = a(n-1) + the number of primes <= a(n-1).

Table of values

n a(n)
1 2
2 3
3 5
4 8
5 12
6 17
7 24
8 33
9 44
10 58
11 74
12 95
13 119
14 149
15 184
16 226
17 274
18 332
19 399
20 477
21 568
22 671
23 792
24 930
25 1088
26 1269
27 1474
28 1707
29 1973
30 2271
31 2608
32 2986
33 3415
34 3895
35 4434
36 5036
37 5710
38 6461
39 7299
40 8229
41 9260
42 10407
43 11681
44 13083
45 14639
46 16354
47 18250

List of values

[2, 3, 5, 8, 12, 17, 24, 33, 44, 58, 74, 95, 119, 149, 184, 226, 274, 332, 399, 477, 568, 671, 792, 930, 1088, 1269, 1474, 1707, 1973, 2271, 2608, 2986, 3415, 3895, 4434, 5036, 5710, 6461, 7299, 8229, 9260, 10407, 11681, 13083, 14639, 16354, 18250]

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

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