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 | 4 |
| 2 | 12 |
| 3 | 46 |
| 4 | 103 |
| 5 | 396 |
| 6 | 717 |
| 7 | 2451 |
| 8 | 3929 |
| 9 | 11803 |
| 10 | 17202 |
| 11 | 46916 |
| 12 | 62668 |
| 13 | 157138 |
| 14 | 197114 |
| 15 | 458064 |
| 16 | 541267 |
| 17 | 1180018 |
| 18 | 1323543 |
| 19 | 2718398 |
| 20 | 2915696 |
| 21 | 5675113 |
| 22 | 5839596 |
| 23 | 10821575 |
| 24 | 10724938 |
| 25 | 18983655 |
| 26 | 18174231 |
| 27 | 30856021 |
| 28 | 28608908 |
| 29 | 46708476 |
| 30 | 42036009 |
| 31 | 66157433 |
| 32 | 57908390 |
| 33 | 88020231 |
| 34 | 75070514 |