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 | 5 |
| 2 | 29 |
| 3 | 268 |
| 4 | 2104 |
| 5 | 17578 |
| 6 | 143072 |
| 7 | 1177709 |
| 8 | 9646285 |
| 9 | 79185086 |
| 10 | 649376899 |
| 11 | 5327739196 |
| 12 | 43702127758 |
| 13 | 358509826061 |
| 14 | 2940912358777 |
| 15 | 24125201563249 |
| 16 | 197904782854703 |
| 17 | 1623466068552246 |
| 18 | 13317706169767704 |
| 19 | 109248620592925041 |