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 | 44 |
| 2 | 383 |
| 3 | 1821 |
| 4 | 6254 |
| 5 | 17487 |
| 6 | 42386 |
| 7 | 92430 |
| 8 | 185727 |
| 9 | 349558 |
| 10 | 623513 |
| 11 | 1063283 |
| 12 | 1745172 |
| 13 | 2771393 |
| 14 | 4276212 |
| 15 | 6433004 |
| 16 | 9462285 |
| 17 | 13640784 |
| 18 | 19311619 |
| 19 | 26895641 |
| 20 | 36904010 |
| 21 | 49952067 |
| 22 | 66774566 |
| 23 | 88242330 |
| 24 | 115380395 |
| 25 | 149387706 |
| 26 | 191658429 |
| 27 | 243804943 |