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.

A008057 Smallest sum of an addition chain for 2n+1.

Table of values

n a(n)
0 0
1 5
2 10
3 16
4 20
5 27
6 31
7 35
8 40
9 47
10 51
11 56
12 60
13 65
14 74
15 78
16 80
17 86
18 92
19 96
20 102
21 106
22 110
23 120
24 121
25 125
26 134
27 137
28 142
29 148
30 153
31 156
32 160
33 167
34 171
35 182
36 184
37 185
38 192
39 201
40 200
41 206
42 210
43 219
44 227
45 231
46 233
47 237
48 241
49 245

List of values

[0, 5, 10, 16, 20, 27, 31, 35, 40, 47, 51, 56, 60, 65, 74, 78, 80, 86, 92, 96, 102, 106, 110, 120, 121, 125, 134, 137, 142, 148, 153, 156, 160, 167, 171, 182, 184, 185, 192, 201, 200, 206, 210, 219, 227, 231, 233, 237, 241, 245]