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.

A278114 Number of primes <= 2n^2.

Table of values

n a(n)
1 1
2 4
3 7
4 11
5 15
6 20
7 25
8 31
9 37
10 46
11 53
12 61
13 68
14 77
15 87
16 97
17 106
18 118
19 128
20 139
21 152
22 163
23 177
24 190
25 204
26 217
27 231
28 247
29 263
30 278
31 293
32 309
33 326
34 344
35 363
36 377
37 399
38 418
39 436
40 452
41 474
42 492
43 516
44 536
45 558
46 580
47 600
48 623
49 647
50 669
51 692
52 713
53 738
54 765
55 789
56 816
57 842
58 867

List of values

[1, 4, 7, 11, 15, 20, 25, 31, 37, 46, 53, 61, 68, 77, 87, 97, 106, 118, 128, 139, 152, 163, 177, 190, 204, 217, 231, 247, 263, 278, 293, 309, 326, 344, 363, 377, 399, 418, 436, 452, 474, 492, 516, 536, 558, 580, 600, 623, 647, 669, 692, 713, 738, 765, 789, 816, 842, 867]