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.

A058622 a(n) = 2^(n-1) - ((1+(-1)^n)/4)*binomial(n, n/2).

Table of values

n a(n)
0 0
1 1
2 1
3 4
4 5
5 16
6 22
7 64
8 93
9 256
10 386
11 1024
12 1586
13 4096
14 6476
15 16384
16 26333
17 65536
18 106762
19 262144
20 431910
21 1048576
22 1744436
23 4194304
24 7036530
25 16777216
26 28354132
27 67108864
28 114159428
29 268435456
30 459312152
31 1073741824
32 1846943453

List of values

[0, 1, 1, 4, 5, 16, 22, 64, 93, 256, 386, 1024, 1586, 4096, 6476, 16384, 26333, 65536, 106762, 262144, 431910, 1048576, 1744436, 4194304, 7036530, 16777216, 28354132, 67108864, 114159428, 268435456, 459312152, 1073741824, 1846943453]