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.

A078707 Number of vectors of length n that are symmetric about the middle, where each element is drawn from a set of n distinct elements.

Table of values

n a(n)
0 1
1 1
2 2
3 9
4 16
5 125
6 216
7 2401
8 4096
9 59049
10 100000
11 1771561
12 2985984
13 62748517
14 105413504
15 2562890625
16 4294967296
17 118587876497
18 198359290368
19 6131066257801
20 10240000000000
21 350277500542221
22 584318301411328
23 21914624432020321
24 36520347436056576

List of values

[1, 1, 2, 9, 16, 125, 216, 2401, 4096, 59049, 100000, 1771561, 2985984, 62748517, 105413504, 2562890625, 4294967296, 118587876497, 198359290368, 6131066257801, 10240000000000, 350277500542221, 584318301411328, 21914624432020321, 36520347436056576]