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 | 29 |
| 3 | 110 |
| 4 | 314 |
| 5 | 1829 |
| 6 | 8803 |
| 7 | 34757 |
| 8 | 157673 |
| 9 | 735144 |
| 10 | 3208028 |
| 11 | 14196017 |
| 12 | 64154943 |
| 13 | 286007061 |
| 14 | 1271032033 |
| 15 | 5685858000 |
| 16 | 25403326244 |
| 17 | 113255416409 |
| 18 | 505585282497 |
| 19 | 2257780807909 |
| 20 | 10075966019543 |
| 21 | 44971626813134 |
| 22 | 200763429520862 |