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) |
---|---|
1 | 1 |
2 | 6 |
3 | 30 |
4 | 126 |
5 | 534 |
6 | 2262 |
7 | 9534 |
8 | 40254 |
9 | 169302 |
10 | 702510 |
11 | 2929806 |
12 | 12222414 |
13 | 50908158 |
14 | 212134902 |
15 | 882794118 |
16 | 3654001326 |
17 | 15159263934 |
18 | 62906444238 |
19 | 260853828438 |
20 | 1081924309806 |
21 | 4484440327350 |