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.

A101306 a(n) = Sum_{i=1..n} {last digit of prime(i)}.

Table of values

n a(n)
1 2
2 5
3 10
4 17
5 18
6 21
7 28
8 37
9 40
10 49
11 50
12 57
13 58
14 61
15 68
16 71
17 80
18 81
19 88
20 89
21 92
22 101
23 104
24 113
25 120
26 121
27 124
28 131
29 140
30 143
31 150
32 151
33 158
34 167
35 176
36 177
37 184
38 187
39 194
40 197
41 206
42 207
43 208
44 211
45 218
46 227
47 228
48 231
49 238
50 247
51 250
52 259
53 260
54 261
55 268
56 271
57 280

List of values

[2, 5, 10, 17, 18, 21, 28, 37, 40, 49, 50, 57, 58, 61, 68, 71, 80, 81, 88, 89, 92, 101, 104, 113, 120, 121, 124, 131, 140, 143, 150, 151, 158, 167, 176, 177, 184, 187, 194, 197, 206, 207, 208, 211, 218, 227, 228, 231, 238, 247, 250, 259, 260, 261, 268, 271, 280]