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 | 0 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 20 |
6 | 55 |
7 | 210 |
8 | 1225 |
9 | 4760 |
10 | 26145 |
11 | 157850 |
12 | 811195 |
13 | 5345340 |
14 | 35170135 |
15 | 222472250 |
16 | 1650073425 |
17 | 12000388400 |
18 | 88563700225 |
19 | 720929459250 |
20 | 5786843137075 |
21 | 48072795270500 |
22 | 424314078763575 |
23 | 3731123025279650 |
24 | 34084058218435225 |
25 | 323768324084205000 |