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 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 37 |
| 5 | 103 |
| 6 | 317 |
| 7 | 967 |
| 8 | 2869 |
| 9 | 8639 |
| 10 | 25853 |
| 11 | 77623 |
| 12 | 232997 |
| 13 | 698735 |
| 14 | 2096461 |
| 15 | 6288871 |
| 16 | 18867125 |
| 17 | 56600351 |
| 18 | 169802077 |
| 19 | 509408279 |
| 20 | 1528220741 |
| 21 | 4584666319 |
| 22 | 13753990765 |
| 23 | 41261980487 |
| 24 | 123785957845 |
| 25 | 371357840767 |
| 26 | 1114073555069 |