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.

A213173 a(n) = 4^floor(n/2), Powers of 4 repeated.

Table of values

n a(n)
0 1
1 1
2 4
3 4
4 16
5 16
6 64
7 64
8 256
9 256
10 1024
11 1024
12 4096
13 4096
14 16384
15 16384
16 65536
17 65536
18 262144
19 262144
20 1048576
21 1048576
22 4194304
23 4194304
24 16777216
25 16777216
26 67108864
27 67108864
28 268435456
29 268435456
30 1073741824
31 1073741824
32 4294967296
33 4294967296

List of values

[1, 1, 4, 4, 16, 16, 64, 64, 256, 256, 1024, 1024, 4096, 4096, 16384, 16384, 65536, 65536, 262144, 262144, 1048576, 1048576, 4194304, 4194304, 16777216, 16777216, 67108864, 67108864, 268435456, 268435456, 1073741824, 1073741824, 4294967296, 4294967296]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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