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.

A152551 a(n) = (2*n+1)^floor((n-1)/2).

Table of values

n a(n)
0 1
1 1
2 1
3 7
4 9
5 121
6 169
7 3375
8 4913
9 130321
10 194481
11 6436343
12 9765625
13 387420489
14 594823321
15 27512614111
16 42618442977
17 2251875390625
18 3512479453921
19 208728361158759
20 327381934393961
21 21611482313284249
22 34050628916015625

List of values

[1, 1, 1, 7, 9, 121, 169, 3375, 4913, 130321, 194481, 6436343, 9765625, 387420489, 594823321, 27512614111, 42618442977, 2251875390625, 3512479453921, 208728361158759, 327381934393961, 21611482313284249, 34050628916015625]