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.

A302583 a(n) = ((n + 1)^n - (n - 1)^n)/2.

Table of values

n a(n)
0 0
1 1
2 4
3 28
4 272
5 3376
6 51012
7 908608
8 18640960
9 432891136
10 11225320100
11 321504185344
12 10079828372880
13 343360783937536
14 12627774819845668
15 498676704524517376
16 21046391759976988928
17 945381827279671853056
18 45032132922921758270916
19 2267322327322331161821184

List of values

[0, 1, 4, 28, 272, 3376, 51012, 908608, 18640960, 432891136, 11225320100, 321504185344, 10079828372880, 343360783937536, 12627774819845668, 498676704524517376, 21046391759976988928, 945381827279671853056, 45032132922921758270916, 2267322327322331161821184]