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.

A061568 Number of primes <= sum of first n primes.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 9
6 13
7 16
8 21
9 25
10 31
11 37
12 45
13 51
14 60
15 66
16 75
17 85
18 95
19 103
20 115
21 127
22 138
23 150
24 162
25 177
26 191
27 205
28 219
29 233
30 250
31 267
32 283
33 300
34 319
35 338
36 360
37 376
38 400
39 421
40 441
41 461
42 481
43 509
44 531
45 557
46 578
47 602
48 630
49 653
50 684
51 707
52 737
53 765
54 793
55 825
56 853
57 884

List of values

[1, 3, 4, 7, 9, 13, 16, 21, 25, 31, 37, 45, 51, 60, 66, 75, 85, 95, 103, 115, 127, 138, 150, 162, 177, 191, 205, 219, 233, 250, 267, 283, 300, 319, 338, 360, 376, 400, 421, 441, 461, 481, 509, 531, 557, 578, 602, 630, 653, 684, 707, 737, 765, 793, 825, 853, 884]