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.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 20 |
3 | 124 |
4 | 936 |
5 | 8424 |
6 | 88648 |
7 | 1072432 |
8 | 14702720 |
9 | 225692128 |
10 | 3839770656 |
11 | 71780577312 |
12 | 1463532416320 |
13 | 32337850727680 |
14 | 770039603953664 |
15 | 19664621381714944 |
16 | 536234348295180288 |
17 | 15554459021934423552 |
18 | 478297493455731968512 |
19 | 15543431292269887979008 |