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 | 11 |
| 3 | 38 |
| 4 | 97 |
| 5 | 213 |
| 6 | 432 |
| 7 | 833 |
| 8 | 1555 |
| 9 | 2838 |
| 10 | 5097 |
| 11 | 9045 |
| 12 | 15904 |
| 13 | 27761 |
| 14 | 48171 |
| 15 | 83174 |
| 16 | 143009 |
| 17 | 244997 |
| 18 | 418384 |
| 19 | 712465 |
| 20 | 1210195 |
| 21 | 2050966 |
| 22 | 3468681 |
| 23 | 5855333 |
| 24 | 9867072 |
| 25 | 16600993 |
| 26 | 27889547 |
| 27 | 46790438 |
| 28 | 78401185 |
| 29 | 131212533 |
| 30 | 219355632 |