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 | 512 |
| 2 | 11235 |
| 3 | 99700 |
| 4 | 552247 |
| 5 | 2276028 |
| 6 | 7642875 |
| 7 | 22063924 |
| 8 | 56687801 |
| 9 | 132734964 |
| 10 | 288116455 |
| 11 | 587136848 |
| 12 | 1134248583 |
| 13 | 2093008152 |
| 14 | 3711583751 |
| 15 | 6356379032 |
| 16 | 10555568481 |
| 17 | 17054586712 |
| 18 | 26885876603 |
| 19 | 41455479708 |
| 20 | 62649346759 |
| 21 | 92962556324 |