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 | 73 |
| 2 | 1405 |
| 3 | 13237 |
| 4 | 79459 |
| 5 | 350683 |
| 6 | 1240399 |
| 7 | 3716695 |
| 8 | 9793891 |
| 9 | 23301307 |
| 10 | 51019255 |
| 11 | 104285215 |
| 12 | 201186025 |
| 13 | 369464785 |
| 14 | 650284045 |
| 15 | 1102999717 |
| 16 | 1811113021 |
| 17 | 2889580645 |
| 18 | 4493676169 |
| 19 | 6829608673 |
| 20 | 10167117319 |
| 21 | 14854273567 |
| 22 | 21334735555 |
| 23 | 30167712043 |
| 24 | 42050906191 |
| 25 | 57846722311 |