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 | 4 |
| 3 | 9 |
| 4 | 24 |
| 5 | 58 |
| 6 | 171 |
| 7 | 340 |
| 8 | 1097 |
| 9 | 2673 |
| 10 | 5467 |
| 11 | 13353 |
| 12 | 35957 |
| 13 | 128823 |
| 14 | 451488 |
| 15 | 494198 |
| 16 | 499871 |