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 | 32 |
| 2 | 268 |
| 3 | 1772 |
| 4 | 13748 |
| 5 | 108132 |
| 6 | 871228 |
| 7 | 7113068 |
| 8 | 58698164 |
| 9 | 488329172 |
| 10 | 4089121128 |
| 11 | 34423417280 |
| 12 | 291070095356 |
| 13 | 2470369205804 |
| 14 | 21033518369320 |
| 15 | 179580640999392 |
| 16 | 1536920470892852 |
| 17 | 13181385142142708 |
| 18 | 113261618364481612 |