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 | 14 |
| 3 | 102 |
| 4 | 916 |
| 5 | 9536 |
| 6 | 85215 |
| 7 | 775547 |
| 8 | 7213161 |
| 9 | 66719868 |
| 10 | 617206899 |
| 11 | 5712427735 |
| 12 | 52846385777 |
| 13 | 488921918232 |
| 14 | 4523682017995 |
| 15 | 41853575267115 |
| 16 | 387232937869441 |
| 17 | 3582725192257390 |
| 18 | 33147778088300382 |
| 19 | 306687046141834012 |