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) |
|---|---|
| 0 | 1 |
| 1 | 29 |
| 2 | 241 |
| 3 | 1589 |
| 4 | 12281 |
| 5 | 96279 |
| 6 | 773245 |
| 7 | 6293687 |
| 8 | 51780089 |
| 9 | 429498473 |
| 10 | 3585931251 |
| 11 | 30099267623 |
| 12 | 253765101341 |
| 13 | 2147470776077 |
| 14 | 18230728488283 |
| 15 | 155192678512659 |
| 16 | 1324259934723241 |
| 17 | 11323518226156213 |
| 18 | 97003621972668547 |