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.

A087461 Arithmetic mean of n-th and 2n-th primes.

Table of values

n a(n)
2 5
3 9
4 13
5 20
6 25
7 30
8 36
9 42
10 50
11 55
12 63
13 71
14 75
15 80
16 92
17 99
18 106
19 115
20 122
21 127
22 136
23 141
24 156
25 163
26 170
27 177
28 185
29 190
30 197
31 210
32 221
33 227
34 238
35 249
36 255
37 265
38 273
39 282
40 291
41 300
42 307
43 317
44 325
45 330
46 339
47 351
48 363
49 374
50 385
51 395
52 404
53 409
54 422
55 429
56 438
57 444

List of values

[5, 9, 13, 20, 25, 30, 36, 42, 50, 55, 63, 71, 75, 80, 92, 99, 106, 115, 122, 127, 136, 141, 156, 163, 170, 177, 185, 190, 197, 210, 221, 227, 238, 249, 255, 265, 273, 282, 291, 300, 307, 317, 325, 330, 339, 351, 363, 374, 385, 395, 404, 409, 422, 429, 438, 444]