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.

A262439 Number of primes not exceeding 1+n*(n+1)/2.

Table of values

n a(n)
1 1
2 2
3 4
4 5
5 6
6 8
7 10
8 12
9 14
10 16
11 19
12 22
13 24
14 27
15 30
16 33
17 36
18 39
19 43
20 47
21 50
22 54
23 59
24 62
25 66
26 70
27 75
28 79
29 84
30 90
31 94
32 99
33 102
34 108
35 115
36 121
37 126
38 131
39 137
40 142
41 149
42 154
43 161
44 167
45 174
46 180
47 189
48 193
49 200
50 205
51 217
52 220
53 226
54 235
55 242
56 251
57 259
58 267
59 274
60 282
61 290
62 297
63 306
64 313
65 324
66 329
67 338
68 348
69 358
70 367

List of values

[1, 2, 4, 5, 6, 8, 10, 12, 14, 16, 19, 22, 24, 27, 30, 33, 36, 39, 43, 47, 50, 54, 59, 62, 66, 70, 75, 79, 84, 90, 94, 99, 102, 108, 115, 121, 126, 131, 137, 142, 149, 154, 161, 167, 174, 180, 189, 193, 200, 205, 217, 220, 226, 235, 242, 251, 259, 267, 274, 282, 290, 297, 306, 313, 324, 329, 338, 348, 358, 367]