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 | 22 |
| 2 | 484 |
| 3 | 2706 |
| 4 | 24086 |
| 5 | 177488 |
| 6 | 1415508 |
| 7 | 10934750 |
| 8 | 85697362 |
| 9 | 667262804 |
| 10 | 5207958764 |
| 11 | 40607176444 |
| 12 | 316775073124 |
| 13 | 2470717292796 |
| 14 | 19272100725330 |
| 15 | 150320036967880 |
| 16 | 1172492187142646 |
| 17 | 9145360490517122 |
| 18 | 71333468695248480 |
| 19 | 556397961419606324 |