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.

A191621 a(n) = ((n+1)^n-(n-1)^n)/2+1.

Table of values

n a(n)
1 2
2 5
3 29
4 273
5 3377
6 51013
7 908609
8 18640961
9 432891137
10 11225320101
11 321504185345
12 10079828372881
13 343360783937537
14 12627774819845669
15 498676704524517377
16 21046391759976988929
17 945381827279671853057
18 45032132922921758270917

List of values

[2, 5, 29, 273, 3377, 51013, 908609, 18640961, 432891137, 11225320101, 321504185345, 10079828372881, 343360783937537, 12627774819845669, 498676704524517377, 21046391759976988929, 945381827279671853057, 45032132922921758270917]