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 | 2310 |
| 2 | 15015 |
| 3 | 85085 |
| 4 | 323323 |
| 5 | 1062347 |
| 6 | 2800733 |
| 7 | 6678671 |
| 8 | 14535931 |
| 9 | 31367009 |
| 10 | 58642669 |
| 11 | 95041567 |
| 12 | 162490421 |
| 13 | 259106347 |
| 14 | 385499687 |
| 15 | 600662303 |
| 16 | 907383479 |
| 17 | 1249792339 |
| 18 | 1673450759 |
| 19 | 2276990377 |
| 20 | 3024658859 |
| 21 | 4132280413 |
| 22 | 5717264681 |