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.

A385147 a(n) = Sum_{i=1..n} 2^phi(i), where phi=A000010.

Table of values

n a(n)
1 2
2 4
3 8
4 12
5 28
6 32
7 96
8 112
9 176
10 192
11 1216
12 1232
13 5328
14 5392
15 5648
16 5904
17 71440
18 71504
19 333648
20 333904
21 338000
22 339024
23 4533328
24 4533584
25 5582160
26 5586256
27 5848400
28 5852496
29 274287952
30 274288208
31 1348030032
32 1348095568
33 1349144144
34 1349209680
35 1365986896
36 1365990992

List of values

[2, 4, 8, 12, 28, 32, 96, 112, 176, 192, 1216, 1232, 5328, 5392, 5648, 5904, 71440, 71504, 333648, 333904, 338000, 339024, 4533328, 4533584, 5582160, 5586256, 5848400, 5852496, 274287952, 274288208, 1348030032, 1348095568, 1349144144, 1349209680, 1365986896, 1365990992]