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.

A345445 a(n) = n^n - (n+1)!/2.

Table of values

n a(n)
1 0
2 1
3 15
4 196
5 2765
6 44136
7 803383
8 16595776
9 385606089
10 9980041600
11 285072169811
12 8912986937856
13 302831517446653
14 11111352988374016
15 437883428985915375
16 18446566229995503616
17 827237060699483900177
18 39346347252746333159424
19 1978418439209309500803979
20 104857574454528914145280000

List of values

[0, 1, 15, 196, 2765, 44136, 803383, 16595776, 385606089, 9980041600, 285072169811, 8912986937856, 302831517446653, 11111352988374016, 437883428985915375, 18446566229995503616, 827237060699483900177, 39346347252746333159424, 1978418439209309500803979, 104857574454528914145280000]