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.

A276824 a(n) = p-s, where s = Sum_{i=1..n} prime(i) and p = primepi(prime(n)^2).

Table of values

n a(n)
1 0
2 -1
3 -1
4 -2
5 2
6 -2
7 3
8 -5
9 -1
10 17
11 2
12 22
13 25
14 2
15 1
16 28
17 47
18 18
19 41
20 36
21 -7
22 20
23 12
24 37
25 103
26 91
27 30
28 10
29 -57
30 -70
31 157
32 125
33 153
34 63
35 213
36 120
37 145
38 168
39 129
40 154
41 170
42 65
43 230
44 114
45 61
46 -63
47 189
48 445
49 386
50 239
51 172
52 203
53 52
54 239
55 257
56 268

List of values

[0, -1, -1, -2, 2, -2, 3, -5, -1, 17, 2, 22, 25, 2, 1, 28, 47, 18, 41, 36, -7, 20, 12, 37, 103, 91, 30, 10, -57, -70, 157, 125, 153, 63, 213, 120, 145, 168, 129, 154, 170, 65, 230, 114, 61, -63, 189, 445, 386, 239, 172, 203, 52, 239, 257, 268]