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.

A081631 a(n) = 2*2^n - (-2)^n.

Table of values

n a(n)
0 1
1 6
2 4
3 24
4 16
5 96
6 64
7 384
8 256
9 1536
10 1024
11 6144
12 4096
13 24576
14 16384
15 98304
16 65536
17 393216
18 262144
19 1572864
20 1048576
21 6291456
22 4194304
23 25165824
24 16777216
25 100663296
26 67108864
27 402653184
28 268435456
29 1610612736
30 1073741824

List of values

[1, 6, 4, 24, 16, 96, 64, 384, 256, 1536, 1024, 6144, 4096, 24576, 16384, 98304, 65536, 393216, 262144, 1572864, 1048576, 6291456, 4194304, 25165824, 16777216, 100663296, 67108864, 402653184, 268435456, 1610612736, 1073741824]