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 | 6 |
| 2 | 7 |
| 3 | 8 |
| 4 | 17 |
| 5 | 40 |
| 6 | 151 |
| 7 | 877 |
| 8 | 6835 |
| 9 | 19687 |
| 10 | 34502 |
| 11 | 46375 |
| 12 | 109057 |
| 13 | 1315376 |
| 14 | 1463921 |
| 15 | 33422711 |
| 16 | 117091367 |
| 17 | 436282342 |
| 18 | 542784031 |
| 19 | 550371662 |
| 20 | 5227148122 |
| 21 | 55251647224 |