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 | 13580 |
| 2 | 59720 |
| 3 | 263156 |
| 4 | 1161050 |
| 5 | 5126096 |
| 6 | 22639594 |
| 7 | 99998070 |
| 8 | 441725882 |
| 9 | 1951405680 |
| 10 | 8621117794 |
| 11 | 38088447024 |
| 12 | 168279117534 |
| 13 | 743481021992 |
| 14 | 3284821244114 |
| 15 | 14512935374230 |
| 16 | 64120940154432 |
| 17 | 283299106253030 |