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 | 17 |
| 3 | 163 |
| 4 | 529 |
| 5 | 2501 |
| 6 | 2771 |
| 7 | 14407 |
| 8 | 16913 |
| 9 | 39529 |
| 10 | 42517 |
| 11 | 146411 |
| 12 | 86227 |
| 13 | 342733 |
| 14 | 244919 |
| 15 | 407663 |
| 16 | 541201 |
| 17 | 1336337 |
| 18 | 671993 |
| 19 | 2345779 |
| 20 | 1323029 |
| 21 | 2348341 |
| 22 | 2488987 |
| 23 | 6156503 |
| 24 | 2756819 |
| 25 | 7815001 |
| 26 | 5826461 |
| 27 | 9605467 |
| 28 | 7621303 |
| 29 | 19803869 |
| 30 | 6930271 |
| 31 | 27705631 |
| 32 | 17318417 |
| 33 | 23864993 |