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 | 4 |
| 3 | 6 |
| 4 | 7 |
| 5 | 13 |
| 6 | 35 |
| 7 | 212 |
| 8 | 2311 |
| 9 | 2316 |
| 10 | 2322 |
| 11 | 2329 |
| 12 | 2550 |
| 13 | 9241 |
| 14 | 30030 |
| 15 | 30037 |
| 16 | 32341 |
| 17 | 32347 |
| 18 | 34662 |
| 19 | 60066 |
| 20 | 512850 |
| 21 | 1023367 |
| 22 | 223092876 |
| 23 | 223092877 |
| 24 | 223095199 |
| 25 | 223097490 |
| 26 | 223097491 |
| 27 | 223122913 |
| 28 | 446185741 |
| 29 | 6469693260 |
| 30 | 6479392984 |