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 | 3 |
| 2 | 13 |
| 3 | 39 |
| 4 | 118 |
| 5 | 185 |
| 6 | 400 |
| 7 | 511 |
| 8 | 1022 |
| 9 | 1287 |
| 10 | 2574 |
| 11 | 4279 |
| 12 | 8558 |
| 13 | 11777 |
| 14 | 24377 |
| 15 | 23554 |
| 16 | 46111 |
| 17 | 99085 |
| 18 | 165490 |